Getting Started

What is FlightLog ?

FlightLog is the most complete pilot logbook software for iPhone, iPad, and Android. More of a logbook, it comes with a lot of tools for airline pilots, professional pilots, and private pilots too.

In 1 click you can import your roster (flights are auto-populated), and once your flight is done, flight times are auto completed… nothing to do !

For Commercial Flights, you must confirm the OOOI hours (block hours) by taping on hour fields, to be considered as done.

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PRO version

FlightLog is growing and now facing fees… We do our best to keep this app free, and we found a mid-way solution.

We are now displaying some ads, we know it’s not pleasant at all.

The logbook functions are still free and without any restriction but tools and some particular functions are restricted :

  • Tools
  • Weather
  • Space Weather
  • Fatigue Risk Management
  • Deicing
  • Dangerous Goods
  • Radar
  • Air Quality
  • Sunrise time
  • Aircraft search
  • CRAR

If you want to use FlightLog without any restriction and without any ads, please purchase the PRO version. It’s not so expensive compared with other logbooks, it’s lifetime and across devices (same manufacturers : 1 purchase for all iOS devices) and it will HELP US !

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When app is launching, you are getting to this page.


In a glance, you can check almost all.

  • Total flights, flight times etc
  • Your next 5 flights to come,
  • Certificates and recent experience
  • your flight status, depending of your certificates validity and recent experience,
  • Your operational performances
  • Flight Time Limitations

By taping any area you’ll be redirected to the right section.


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ACARS Capture

ACARS Capture


FlightLog grabs the OOOI (OUT, OFF, ON, IN) hours from the ACARS display, using OCR (Optical Character Recognition) technology, on-the-fly, even with no network.

Hit the ACARS button, scan your ACARS screen with your camera to capture block hours.

Then check block hours. Hours in green means the hours have been checked with the available block time / flight time. In red it means the scanned hours don’t fit block/flight times. You can edit one by one if needed and hit USE HOURS to fill flight data, or just close the window.

In case your ACARS screen is not recognized, just send us the picture.

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My Flights


All your flights are displayed under My Flights tab.


  • airline logos are automatically displayed according to your flight number.
  • on large screen devices you can see how many take-off and landing you made per flight.
  • color badges show your delay (ON TIME, 5MIN, -15MIN, +15MIN)
  • a magnify icon is used to filter displayed flights. You can search ALL within your database (crew name, tail number, flight number, personal note.. please note it’s case sensitive, and need 3 chars minimum).


  • PULL DOWN : update flight times (see below)
  • PULL UP :  load and display next flights
  • SLIDE LEFT : delete flight
  • DELETE button : delete flights by bulk
  • MONTH button : display selected month flights
  • TODAY button : display Today’s flights
  • + button : add a new flight


No more need to log your times !

  1. Enable this option in Settings.
  2. Pull down the flight list page will update flight times :  OOOI (OUT-IN-OFF-ON) times for all available flights, parking stand, and also tailnumber if empty.

      • O O O I will be updated within 7 days of your flights.
      • O – – I will be updated within 45 days of your flights.
      • after 45 days, flight times will not be updated.


By taping on a flight title bar, you open the concerned flight window.

You MUST fill OUT OFF ON IN times so as your flight can considered as done and count toward the total flight time.


All fields are editable :

Block PAYLOAD | PAX | FUEL BURN (estimated/real)


By taping on a field it will show up a calculator helping filling values. For estimated fuel, you can add values from your OFP (TRIP fuel, TAXI IN and OUT) and by pressing OK it will convert the TOTAL from kg to t. (You can also fill values directly in t).

Filling these values calculate :

  • tkm/L which is payload x distance / fuel burn
  • paxkm/L which is pax x distance / fuel burn
  • tCO2 which is the total CO2 emitted (Greenhouse gases emission for Jet A/A1 and also CO2 emitted in petrol extraction). By taping this field you’ll have a popup with these two values differentiated.
  • filling both estimated and real fuel consumption will display the difference flight by flight, and cumulated (see TOTALS & STATS)



By clicking this icon, a popup shows the global statistical delays for this flight number. This icon appears only if you have AUTO UPDATED your flight time (see below)


No more need to log your times !

  1. Enable this option in Settings.
  2. Pull down the flight list page will update flight times :  OOOI (OUT-IN-OFF-ON) times for all available flights, parking stand, and also tailnumber if empty.

      • O O O I will be updated within 7 days of your flights.
      • O – – I will be updated within 45 days of your flights.
      • after 45 days, flight times will not be updated.

See also ACARS Capture

ACARS Capture


FlightLog grabs the OOOI (OUT, OFF, ON, IN) hours from the ACARS display, using OCR (Optical Character Recognition) technology, on-the-fly, even with no network.

Hit the ACARS button, scan your ACARS screen with your camera to fill block hours.

Then check block hours. Hours in green means the hours have been checked with the available block time / flight time. In red it means the scanned hours don’t fit block/flight times. You can edit one by one if needed and hit USE HOURS to fill flight data, or just close the window.

In case your ACARS screen is not recognized, just send us the picture.




Calculate your received cosmic radiation (see Cosmic Radiation) by :

  1. Fill your OFF and ON time (air flight time only is concerned, not block time)
  2. Tap on Cosmic Radiation field
  3. Enter your first and last Flight Level if any step climb
  4. Tap on green check icon

see Cosmic Radiations Calculator for deeper explanation.


Add an Aircraft



Click on AIRCRAFT field and select your aircraft in the dropdown list. If your tail doesn’t appear, press the + icon and add a new tailnumber. You can also use the search bar on top to help you finding your aircraft.


Find your aircraft PRO

ANDROID : May have unexpected results

It’s also possible to locate your aircraft like Flightradar24.

  1. fill your tailnumber
  2. click on the right button
  3. the app will use the ADS-B network to find where is your aircraft and will display the inbound flight and ETA.


Edit airports


You can change your origin and destination by taping the airport fields.

Airport personal Warning notes


By taping the shield icon, you’ll open a popup where you can fill personal notes for the concerned airfield. Each flight with this airfield will fetch your notes. (Orange when note existing, light grey if not)

Weather forecast PRO

See Weather Briefing section

Sunrise/Sunset time PRO



By taping this icon you’ll open a popup where you can display the calculated sunrise/sunset and moonrise/moonset times. The times are precalculated as the popup window shows, with scheduled flight time.

Then you can choose between SCHED / GPS / MANUAL.


Explained above (use scheduled flight time regardless of actual takeoff time or speed)


Uses your device’s GPS data. If no location acquired, the system uses values Alt.30000ft / Spd 400kts.


This is the more accurate way to compute the sunrise time.

  1. Select a WPT (use ‘*’ key to have 5 digits e.g. PATOX or **PGS)
  2. Choose your FL
  3. Select your Ground Speed
  4. Fill your WPT ETA.
  5. hit CALCULATE

The computation is running, between your position (or WPT) and destination, flying along a Great Circle, or if any is inserted, along your ATC route. The sunrise position and time will be displayed on the map. Tap on the event or the Moon icon to see details. Track in black is night, yellow is day. The calculation is taking into account the altitude and speed of course, but also the atmosphere refraction.

Weather Radar PRO

By taping the button WEATHER SAT within the SUNRISE window, you’ll access to a map showing your flight and weather radar image animated. At the bottom you’ll find a range index you can grab to animate time range (10min per step).

Aurora chances of viewing PRO

By taping the button NORTHERN LIGHTS within the SUNRISE window, you’ll access to a map showing your flight and your chances of seeing an aurora.

ANDROID : May have unexpected results

The current Kp is the planetary index calculated by the NOAA.


By taping on Show 3D Earth you will display a full 3D map.


by taping on SUNRISE icon then ATMOSPHERE button you’ll see your flight plan within a WINDS (surface) map. Your flight is truncated into several segments for which a best ground speed FL is computed, taking into account all winds at FL between FL230 and FL500.


Select your FL, Mach and IAS. IAS is the speed under conversion. GS will be calculated with winds at all levels, at selected Mach with local pressure and temperature. Mach is considered as constant ; if you are flying with Cost Index, just deselect CONSTANT MACH (selected Mach will be used as reference, but computing is not so accurate as Mach can vary along cruise).

You can read the delta speed and the delta flight time in sec.

If you have previously inserted a planned trip fuel value, the array will also display a delta fuel consumption based on difference with optimum FL (these are trend values, to give an idea of the overconsumption, do not use for operational).



Here you can edit your OOOI flight times : OUT – OFF – ON – IN.



By taping on any TIME field you’ll edit the value. Taxi time and flight time (airborne and block) are automatically computed.

Average delay for this flight number are available by clicking on the update icon (see below).


Night flight time is automatically computed. You may also edit it by clicking on it.

There is actually two methods :

    1. Distance < 300Nm : night time is computed using sunrise and sunset times in OUT airfield minus 30min.
    2. Distance > 300Nm : night time is computed by looking for sun position for each point of Great Circle route between OUT and IN airfields.




By clicking these icons you’ll access to the general Airport delay Status. You may know by this way if you are likely to hold on destination (or departure).


Here you can insert your DL code. Below will be displayed the IATA signification. By taping on this title, you’ll have a popup where you can see the full description of the DL code.

The DL codes are also used in STATS page.


Insert here your arrival stand. Parking stands are used in STATS page where you can see all stands used, by airport.



You can insert here your RWY used for Takeoff and Landing. These informations are also used in STATS page.



If RWY is missing you can add and manage your own runways. Tap on +ADD NEW RWY and fill orientation. Press STORE to save then back to the flight : your new created runway should be available.


 Select your type of approach. Selecting CATIII/II will set your flight as automatic landing.


Select your function on board (PIC, SIC, PICus, INS…). Selecting SIC, PICus, SPIC or DUAL will display the field NAME PIC required for EASA PDF export. Your flight time is then dispatched in PDF right column (PIC SIC DUAL INS)


By selecting SIC / SPIC / PICus or DUAL will display NAME PIC field. By clicking on it you can edit the Instructor name and also a signature pad will show to get his signature. The signature will show on PDF logbook export.



Here you can select how many takeoffs and landings you performed.


(requested by FAA)  Night landing is automatic. Adding a landing will check if sun is below horizon or not at landing time on destination. If you need to manually force night landing true or false, just tap on “Landing” title. A moon icon is shown if night landing is true.


OPS Data


By allowing it in Settings, you can see a new field with 3 buttons. FROM airport DATA, DESTINATION airport DATA, and a REPORT button.

Please refer to OPS Data section.


  • Here you can save your personal notes according to a particular flight.
  • the LOCKER icon is used to lock your flight.


This is a CPT tool to manage your jumpseat requests, ahead of your flight.

Tap on the field to open the popup window :

Then you can add (+) a new JPS, delete or edit (swap to the left) and also sort your JPS.

> When entering a new JPS, a local notification will remind you 50min before flight (you have to allow notification prompt)


DETAILS field is generally used to report your crew names. Tap on the field to edit.


By pressing the [•••] button you’ll display a contextual menu (aka action sheet) with several actions :

    • Next Leg : you will be redirect to New Flight page with pre-filled data (airports, date, crew, aircraft etc)
    • Return Flight : you will be redirect to New Flight page with pre-filled data (airports, date, crew, aircraft etc)
    • Duplicate : you will be redirect to New Flight page with pre-filled data (airports, date, crew, aircraft etc)
    • Lock Flight : your flight will be locked i.e you won’t be able to edit data unless unlock it (same action than lock button)
    • Cancel Flight : your flight will be considered as cancelled (it remains in your logbook but won’t be included in flight totals and PDF export)
    • iOS Share Flight : you can send a flight, to your copilot for example, for his logbook, via Airdrop, SMS, WhatsApp, Mail etc…
    • Swap to General Aviation Flight (Commercial Flight) : acts as title, swap the flight’s type.
    • Delete Flight : your flight will be deleted (same action as the delete button). It’s also possible to delete multiple flights by once by clicking the trash button at the very bottom of flights list.



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Weather Briefing


1. Context forecast

Available 4 days before flight, with low res (1h resolution), and 6 hours before with high res (15min resolution).

By clicking on WEATHER button you will display a timeline, starting from Departure -30min to Arrival +30min.

Important to know : this is a predicted weather, weather sources are not aeronautical (no TAF nor METAR)

This timeline will show expected weather and threats related to:

  • WIND : >38kt   38->25kt
  • DEICING CHANCES: icing conditions with probability  >50%   30%
  • LVP : Low Visibility Conditions (ceiling and visibility): 550m/200ft   3000m/1000ft
  • VISIBILITY : <550m   <3000m
  • CEILING : <200ft   <1000ft

Note: after closing this window, it will display also a forecast weather with METAR format (although it’s not an observed weather but a forecast)

Below are airports diagrams with runways and wind direction.

2. Weather Threats

Some placards will display in case of weather threat detected : THUNDERSTORM | SNOW | FREEZING RAIN | ICE PELLETS

3. Alternates Analysis

A map with ATC route is displayed, an algorithm computes colors of airports within 200Nm radius around Departure and Destination, and along route. Color is computed from TAF analysis.

The same is computed for en route airports, according to METAR analysis. You may tap on any airport on ATC route to show divert airports around (100Nm radius)

4. Turbulence

Weather Briefing displays turbulence charts from NOAA satellite data.

First is a set of 4 curves of turbulence intensity along your trip : FL390, FL360, FL320, FL290.

Second chart is a vertical view of the trip, turbulence intensity is displayed from ground to FL440.

5. Meteogram

It’s a graphical presentation of the weather encountered along your trip.

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OPS Data

OPERATIONAL DATA is a new functionality, available since V2.2 for iOS devices only.

« What is generally our parking stand ? »
« Is there an ACU there ? GPU ? Where is deicing ?»
« What kind of approach can we expect ? »
« What are the rapid exit taxiway from threshold distances ? »

In an airport we have not visited much, who has not already asked these questions ?

This is the purpose of the new OPS data function : collecting experiences, in a participatory mode, on the airfields we are going to. The obvious goal: to increase the pilots’ awareness of the operational situation of an airport, and ultimately, to improve the operational efficiency of crews.

But beware, who says participatory, says that a sufficient volume of data is necessary for it to be representative. It will therefore be necessary to wait a few weeks of feedback by you, Pilots, for the module to offer satisfactory feedback. As a corollary to this, the application needs you to make numerous returns, and continue to do so, even once the database is sufficiently supplied! Finally, it remains obvious that the documentation filed with the authorities by your company is the only regulatory reference, and that this module cannot replace it.

How to ?

  1. Allow it in Settings.

By allowing this, you can display all data merged from all pilots feedbacks. In return, you kindly accept some of your data is sent to our server. These data are : From and Destination fields, runway in use, approach type, parking stand, and taxi time. Nothing can identify your flight.

  1. Go to My Flights tab and hit one of these 3 buttons (two for data consulting, one for data sending) :

1. Data consulting

By hitting one of the first two buttons in the row, you show up a new window merging all data for the selected airport. Network connection is required to download data in your device, which is stored and consultable during your flight.

Parking Stand and RWY in use are automatically filled from your flight data, or you can manually change it.

Data are shown under 3 categories : Arrival, Turn around and Departure.

  • Approach : by hitting this you can display a graph presenting runway in use and statistics about approach used.
  • IDLE REVERSE : data, if available, is showing if this procedure is requested or not.
  • RAPID EXIT DISTANCE : when available, this is a list of RET from threshold distances for the RWY selected. By clicking on it you can display all runways, all RET distances and also Touchdown aiming point distance if available and not standard. You can hit a RWY to show up distances.  Please do not use as reference as it may not reflect the last AIRAC data.
  • DOCKING:  this will display docking systems by parking stand. (Marshaller, Visual Guidance Docking System, Markings). By clicking on it you will show all parking stands on a chart.
  • REAR DOOR DISEMBARK : information about allowance of disembarking passengers via the aft door, depending on parking stand.
  • RADIO PARTICULARITY : in this case (arrival) it displays TWR > GND if required to contact directly GND ATC after landing.
  • GPU AVAIL : GPU availability per parking stand. Information displayed for your selected stand. By clicking on it, you can see all parking stands.
  • ACU AVAIL : same as GPU.
  • REFUELING PAX ONBOARD : if allowed or not.
  • APU RESTRICTION : shows for example +5MIN | -15MIN if APU must be shutted down not later than 5min after arrival and not sooner than 15min before scheduled departure.
  • PUSH : most common pushback system for your stand. By hitting this you will show up a graph with all push back types dispatch.
  • DEICING : if available, it may contain PARKING STAND or DEICING BAY.
  • NADP : NADP1 | NADP2 | NOT REQUIRED. By clicking on it you will display all runways.
  • TAXIOUT N-1 STARTPOINT: if hit, shows a chart with STAND – ENG START POINT – RWY flows. A good way to know where it’s interesting to start engines.
  • TAXI TIME : a statistical data of taxi time from parking stands to runways. Display the mean time for your selected stand and runway, or if hit, a chart with all data merged.

All these data can be shown for all airlines or only for your’s by choosing the option at the bottom of the page.

Just below is the REPORT ERROR button in case of you find something wrong in data (as data are collected by users), and send us the report.


As OPS data is in participatory mode, so it needs YOU to feed the whole system ! By clicking on the REPORT button you will open up a new window with fields you may or not fill. Parking stands are mandatory (automatically filled by your flight data), other fields are not.

You can SEND the data even in flight, your data will be actually sent as soon as the app retrieves some network to do so.

3. CRAR (Countries Rules And Regulations)


This is a summary – reminder for specific countries and FIR regulations. Just click on a country or FIR to display the summary. Refer to your airline documentation to consult the official and complete rules.


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Create a New Flight

Create a new flight manually :

  1. go to tab New Flight
  2. Select Commercial FlightSimulator or General Aviation
  3. Fill the fields Flight Number, From, To, Scheduled OUT, Scheduled IN.
  4. Select the Departure Date
  5. Save Flight

Note : if you have previously done a flight with same flight number, fields FROM, TO, Sched OUT and Sched IN will be pre-populated (if you have several flights with same name you can choose in a list).

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Import your roster

You can import flights from your roster.

  • Some airlines are fully compatible with FlightLog : Aerologic, Air Austral, Air France, Air New Zealand, Austrian Airlines, Iberia, Ryanair, Transavia.
  • FlightLog is also compatible with rosters like AIMS, BlueOne; CrewConnect, CrewLounge Connect, Jeppesen Crew Management System and RosterBuster.

Air France

You can either import your EP4 (all flights since 2018), import your roster from Calendar (first enable Sync with calendar within CrewMobile app) or import directly from CrewMobile


RosterBuster settings :



(Lufthansa System)

Simply select Netline, then your calendar. FlightLog will find automatically your roster.


Simply select BlueOne then your calendar. FlightLog will find automatically your roster.


AIMS and CrewConnect

  1. Set your IATA airline prefix (2 chars)
  2. Import roster from calendar


This is actually not a full roster importer but you can import flights of the day:

  1. Set your CrewCode
  2. Copy-paste the entire content of your daily flights email within the required field.

Calendar Import (all airlines)

You MUST have your schedule planning on your device calendar. Then,

  1. Tab New Flight
  2. Click on Import from Calendar
  3. Select your roster
  4. (optional) Select Start Date and End Date (default : start and end of present month)
  5. (optional) Select the desired calendar name.
  6. Select ALL or desired flights
  7. Click on IMPORT SELECTED (or the blue circled button). If you can’t see these buttons, it means flights are not well formatted.


Please contact us if you want your own importer !

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Delete Flights


By pressing the trash button at the bottom of the page, you can select multiple flights and delete them by once.

You can also slide a flight to the left.




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By clicking the ATLAS button, you’ll display a new window, depending you are ONLINE or OFFLINE.

OFFLINE mode (2D)

Download Tiles

First download tiles to consult map offline. Click on MAPS to do that. See WORLD ATLAS

Consult maps in flight

You can display a world ATLAS from zoom 4-8, and display your FPR. Pan and Pinch to zoom.

Flight Plan Route

FPR is created automatically by consulting weather data while you were online before your flight. If not, you can edit it manually by clicking on FPR button.


map can be centered on your GPS position. In flight, at high speed, your device may not acquire sufficient accuracy. Using a GLO GPS bluetooth will make it work.

ONLINE mode (3D)

your device will detect automatically if you are online. This is used specifically on ground to replay your flight for example.

2 maps are available : atlas (same as 2D Atlas) or satellite. Just click on map icon on the top right.









The animation is automatically playing, along your flight route, at 30000 ft alt. You can leave the animation at all time, by panning the view.

Click on an arrow to jump forward/back to next/previous waypoint. Displayed ETAs are computed roughly by distance and real blocktimes.

Sunlight is real according to your blocktimes.

Relief 3D is available to ensure a fair immersion. Here is the Aconcagua, in Andes mountain, upon arrival in Santiago del Chile, at sunrise.


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Add an Aircraft


This page is accessed either by the (+) button in My Aircrafts page, or by the (+) button in My Flights page.


  1. Fill the Tail Number (min 5 digits).
  2. then you’ll have access to the Type field:
    • either select your Type (by browsing or using the search bar)
    • or create a new Type.
  3. your new aircraft will be stored


TYPES are IATA main aircrafts for airlines. If you fly on private aircrafts, you’ll have to register a new type.

  1. Hit the + button
  2. enter Tail Number (min 5 digits)
  3. By hitting the +TYPE button, you’ll display 4 new fields : CODE and DESCRIPTION, and SINGLE ENGINE / SINGLE PILOT. Leaving SINGLE ENGINE or SINGLE PILOT unticked means MULTI ENGINE or MULTI PILOT (Flight time will be automatically logged in the right column). Fill your informations and press SAVE.


By taping on the YELLOW button you will reset all types (this will remove your own types)


Depending of your aircraft type, your flight time will be stored in the corresponding PDF exported logbook column (SINGLE PILOT TIME : SE/ME, or MULTI PILOT)

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My Aircraft

Your aircraft are displayed in a list with the total flight time and number of flights. You can :

  • order them by name / flight time / number of flights (by pressing the blue button)
  • edit or delete by swapping to the left
  • add an aircraft by pressing the green + button
  • search an aircraft by filling the tail number in the search top bar.
  • personal note : you can add a comment for each aircraft by editing and fill “Note” field. The note will be displayed then under your aircraft.
  • picture : by pressing the “Pic” button you will display a picture of your aircraft.


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My Airports

Your airports are displayed in a list. You can delete by swapping to the left.

All world airports/airfields are not in FlightLog database.
To add your own airport :

  1. (REQUIRED) Enter OACI name + IATA name + Airport Name
  2. (OPTIONAL) Enter City Name then tap on FIND button. It will search with internet connexion the timezone and geographical location.
  3. if these are nnont found, fill manually timezone and location.
  4. Then press STORE button.

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With this app you can save and restore your log, for free.


Since 2.4.5 FlightLog allows AUTO SYNC (Auto Save and Auto Restore). Enable it by going into >SYNC SERVER or >SYNC DROPBOX and tick Enable AUTOSYNC.

SAVE : The app will save your log automatically when in background, silently (don’t kill your app). If you enable notifications (>Settings) you’ll be warned when log is saved. It should come up after +/-20min background.

RESTORE : in a same way, you’ll be warned if the app finds a saved version more recent than your app version (for example on a device #2). You have to accept the restore, or not, to replace data.

You can still SAVE and RESTORE manually.

Warning : to be sure your device#1 is the master, enable AUTO SYNC then manually SAVE your log. Your device#2 will become the slave (less recent one). ⚠️ Any change on device#2 will auto save this log and device#2 will become the master.

You have 2 ways to save your log. You can use either, or both, for free :

  • our server
  • your own Dropbox

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Server Sync


The server sync is free to use but it can be slow in case of heavy use (though never experienced for the time being…)

  1. SIGNUP a new account (enter a valid email address, wait to receive a confirmation email, and validate your account by clicking on the link attached)
  2. click SAVE (app → server) or RESTORE (server → app)


In this page you can also DELETE your log (it will erase all your data) by clicking the button.


Hitting the CONTACT button will open a popup FEEDBACK window.

Fill your message ; if you need to attach your logbook for support purposes, you can activate the toggle.


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Dropbox Sync

At the very bottom of the Sync page, press the Dropbox Sync button.

  1. Sign into your Dropbox account (it will open a dropbox signin window)
  2. SAVE or RESTORE your log (it’s like server sync). SAVE will create a new folder in your own Dropbox.

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Cosmic Radiation



FlightLog logbook app includes a tool to calculate your received cosmic radiation dose for any flight.

What are cosmic radiations ?

The main source of cosmic radiation on Earth, known as galactic cosmic radiation (GCR), is made up of supernova explosions, but solar activities also contribute to human exposure to radiation, during unpredictable and short lived solar flares and coronal mass ejections.
Cosmic radiation consists mainly of subatomic particles such as neutrons and protons incident on earth with enough energy to generate secondary particles when they interact with the earth atmosphere atoms (oxygen, nitrogen and other) generating other subatomic particles such as muons, electrons, etc.
The radiation dose vary with latitude/longitude/altitude.
The model calculates the theorical cosmic radiation dose (effective dose), taking into account the take off climb, altitude (level changes), a routing along a great circle from departure to destination, and the descent, and of course the flight time. Calculations based on CARI-7 model.
FlightLog has two tools to calculate radiations. A global calculator [TOOLS] and an automatic calculator per flight.

Cosmic Radiations Dose Calculator [TOOLS]

  1. Enter OACI airports (from and destination)
  2. Enter duration of flight
  3. Enter Step Climbs : START for first FL, END for the last one. FlightLog will truncate your flight in equal parts. Leave END empty, or equal to START FL for constant altitude flight.

The app will calculate instantly (no network required) the received dose.

Cosmic Radiation Dose per flight

When logging your flight, any change in OFF-ON block will calculate on-the-fly the radiation dose. If you have inserted a detailled FPR with level changes, altitude changes will be taken into effect. If not, FL370 is the default constant altitude.

You can also tap on RADIATION DOSE field to enter manually Step climbs.

Your radiation dose is cumulated, you can check your annual dose by going to STATS page > RADIATION DOSE 365 DAYS

The maximum annual dose for crew is around 6 mSv.

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World Atlas


FlightLog now comes with a fair new Atlas you can consult offline, in flight.

1. Download tiles

First, download tiles by clicking on MAPS button. Several levels of zoom are available :

    • LOW RES (zoom 4-6 ≃ 6000-1500m)
    • MED RES (zoom 7 ≃ 1000m)
    • HIGH RES (zoom 8 ≃ 500m)

Press Download or Reset for each RES level, you have to do this only once. Please consider around 1h for all sets, depending of your network, and check you have sufficient space available on your device (around 1Gb) as maps will be stored on your device.

2. Consult maps

Consult the maps, pan or pinch to zoom, use the plane icon to center map onto your GPS location (may need a GLO GPS in flight)

You can also display you flight route by going into a specific flight and hit ATLAS button.

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RTO True Stop Margin


When you compute your takeoff performance margins, with a Flex temperature (Airbus) or Assumed Temperature (Boeing), margins are calculated as if OAT is equal to your Flex temperature. Actually with real OAT, your true speed will be slower than calculated so your real margin is greater than displayed margin.

Enter the data used for performance calculation :

  • RWY length (ASDA)
  • Stop Margin calculated
  • OAT
  • FLEX (Assumed temp)

it will display your true margin. In this example, calculated margin=4m, real margin=433m.

BUT DON’T THINK YOU CAN STOP 400m AFTER V1 ! If you stop at V1 you’ll stop 400m before the end. BUT if you stops 400m after V1, you’ll get out of runway… (energy increases as speed^2)

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Cold Temperature Corrections


Altimeters (even on the most advanced aircraft) indicate correctly only if the temperature of the atmosphere is equal to the values of the International Standard Atmosphere (ISA).

When the temperature is lower than ISA, then your true altitude is lower than the indicated altitude!

Instead of applying corrections with this not so easy table :

… you can select inputs and display results right on approach profile.


1 Set you approach type

It can be ILS, APV (minima VNAV or RNP), NPA3D (mode VNAV or FINAL APP) or NPA2D (mode VS or FPA)

it will modify the input fields as altitudes needed to be corrected depend on which approach you are performing.

2 Set Airfield data

Airfield altitude and ground temperature : it will compute ISA.

3 Set your procedure altitudes

  • MOCA (actually the safety altitude considered)
  • Intercept altitude (the last altitude to intercept the final path)
  • MDA
  • Check Alt 1 and/or 2 (NPA3D NPA2D)
  • GA altitude
  • Slope (NPA2D)

4 Apply the corrections to your approach

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Scan SNOWTAM Decoder



Take a picture of your SNOWTAM and click SAVE. The decoded SNOWTAM will show with a runway representation.

Please note this module is still an experiment.

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METAR RWY State Decode


FlightLog comes with a METAR RWY STATE decoding tool. Simply write your code, your runway state will be displayed.

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True Altitude and True Speed



This is a module helping you to calculate your true margin within relief, according to real atmosphere. As real atmosphere differs from standar atmosphere, your true altitude depends on QNH and temperature.

  1. set present FL and SAT to calculate ISA T°. Then, lock ISA toggle.
  2. set QNH and MOCA altitude
  3. set FL to your level off altitude


In a similar way, true speed depends on altitude : select your IAS indicated airspeed, altitude, QNH and temperature, and read your true airspeed.

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Locate an aircraft


ANDROID : May have unexpected results


Enter the desired flight number, click the blue button and the app will display the ETA and flight information, and also a map with true location of your aircraft (from ADS-B network) if your flight is airborne. Just like Flightradar24.

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Radar ATC


Where is going this flight ? Sky has no more secrets for you…

FlightLog will search all aircraft around you transmitting position with ADS, and display them on a radar map. Max distance = 50Nm.


Point your device around you, flights with some informations (airline, aircraft type, origin, destination, actual departure time, ETA etc…) will appear in augmented reality.

Click on Range to select 50Nm – 25Nm – 10Nm (range is auto decreased if too many aircraft found)

Some flight positions may be extrapolated if no sufficient fresh data >20s)

It’s a free tool, so refreshing data rate is pretty poor (around 10s), making flights close to you (10Nm) quite imprecise.

Please note also than magnetic heading is also inaccurate. (The heading value is actually geographic heading as local declination is taken into account). A heading range slider is available to correct some obvious heading shift.

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Fatigue Risk Management


Sleepiness model

FlightLog comes within an elaborated Fatigue module.

Once your roster is imported, this module will show you all your flights to come.

The app is calculating the fatigue caused by your flights, using a bio-mathematical process called Three-Process Model (TPM) of Alertness, elaborated by Akersted.

TPM includes a Process C that represents sleepiness due to circadian influences and has a sinusoidal form with an afternoon peak, and a Process S that is an exponential function of the time since awakening. The third Process U that represents a 12-h period is associated with the afternoon reduction in alertness. The model also includes a sleep inertia function (process W) that initially reduces alertness at the time of waking up with an exponential recovery.

The duty time is computed as : no sleep allowed 2.5h before flight and 2h after.

The model also takes into account the jetlag : we modeled acclimatization to be made continuously, assuming a default daily rate of 30% of the difference between the acclimatized time and local time. Then the model is converted to match the Karolinska Sleepiness Scale (1-9 levels).
You can setup your personal settings like age and sleeping type, setup your actual alertness level, and play with several options like activate jetlag, local night rest, setting up a nap on your next flight, in order to optimize your alertness at landing time and your rest at destination.
Obviously the model, validated for crews (the study was partly funded by Vinnova Sweden (to Stress Research Institute) and partly by Jeppesen AB) is subject to individual differences and applies to 75% of the population.


CrewAlert Pro


CrewAlert Pro is a iOS app from Jeppesen.

CrewAlert Pro runs on all iOS devices and has a rich feature set enabling :

– Data collection and fatigue reporting
– Prediction of fatigue
– Storing multiple parallel scenarios
– Loading rosters automatically
– Reading sleep from Apple Health
– Suggesting fatigue mitigations

As CrewAlert is based on scenario, you should have to fill all your roster to analyse your predictive fatigue. By pushing the SEND TO CREWALERT PRO button, FlightLog sends your flight data (real flights : 15 previous days, roster : 60 next coming days). FlightLog will consider extra crew member if flight time is over 9h30, and calculate your main base. Obviously you can edit these presets within CrewAlert app.

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Unit Converter


Refueling | Altitude | Temperature | Pressure | Speed | Distance

Simply enter a value in a field and associated converted value will be displayed.


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Space Weather and Aurora Predictions



FlightLog logbook app includes a tool to visualize your chances of seeing Northern Lights. Click on WEATHER > SPACE WEATHER.

ANDROID : May have unexpected results

iOS recent device ONLY (webGL) :

By pushing the Show 3D Earth you can display a full 3D map you can rotate and zoom.


Space Weather and Kp

The first row is the Space Conditions including RADIO BLACKOUT, SOLAR RADIATION STORMS and GEOMAGNETIC STORMS. Colors are indicating the storm level -1 to 5 : refer to NOAA SPACE WEATHER SCALES explanations- ), and by taping on any field you’ll have the storm’s consequences displayed.

Below is the CURRENT Kp. Kp is the planetary index which starts at 0 and as the geomagnetic (aurora) strength increases, so too does the Kp number. So Kp 0 being a very weak or none existent aurora, right through to 9 being a major geomagnetic storm with auroras likely in France and even Northern Spain.

If you enable/disable Space Weather notifications within your Settings, you will receive space weather alerts from NOAA as soon as the Kp is greater than 4, or in case of Geomagnetic Storm, Solar Storm, or Radio Blackout.

Aurora Map

Then a map is showing best areas on world map where are the better chances of viewing an aurora (areas displayed are corresponding to a chance > 15%)

Below is the 3 days forecast of Kp.

All datas are from NOAA/SWPC (National Oceanic and Atmospheric Administration / Space Weather Prediction Center)

See also:

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Deicing Hold Over Time (HOT)


FlightLog helps you to calculate protection time, depending on weather conditions and fluid type.

  1. Select FLAPS CONDITION (retracted or extended)
    • Choosing Snow/Snow Grains will open a supplementary menu (visibility) helping you to determine the Snow Intensity
  3. Select FLUID TYPE (Generic I/II/IV or product name)
  4. Select RATIO (100%, 75%, 50%)
  5. Read the HOLDOVER TIME.

Always refer to your airline documentation to crosscheck results.

Results are from FAA 2019-2020 time tables.

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Dangerous Goods - Drill Codes


Just type any UN number as on your NOTOC document, and the product will show up with description, Drill Code, Hazard Class, maximum quantity per aircraft (cargo and passenger), and main risks associated.

Click on Drill Code to consult emergency response :


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Air Quality


Air Quality

FlightLog app comes with a Air Quality map showing different pollution criterias:

CO (Carbon Monoxide)

Carbon monoxide poisoning is the most common type of fatal air poisoning in many countries. The greatest sources of CO to outdoor air are cars, trucks and other vehicles or machinery that burn fossil fuels. Carbon monoxide is colorless, odorless, and tasteless, but highly toxic.

Particulate matter < 2.5µm

Particulate matter are fine inhalable particles, with diameters that are generally 2.5 micrometers and smaller. Particles less than 2.5 micrometers in diameter, also known as fine particles or PM2.5, pose the greatest risk to health.

Ozone O3

Ozone, or trioxygen, is an inorganic molecule with the chemical formula O3 is ground-emitted by cars, power plants, industrial boilers, refineries, chemical plants, and other sources chemically react in the presence of sunlight..There is a great deal of evidence to show that ground-level ozone can harm lung function and irritate the respiratory system.

Nitrogen Dioxide (NO2)

Nitrogen dioxide is introduced into the environment by natural causes, including entry from the stratosphere, bacterial respiration, volcanos, and lightning. These sources make NO2 a trace gas in the atmosphere of Earth, where it plays a role in absorbing sunlight and regulating the chemistry of the troposphere, especially in determining ozone concentrations. NO2 is a reddish brown gas that is emitted from all combustion engines. There are two main nitrogen based compounds that are emitted from combustion engines: NO2 and nitric oxide (NO). Chronic exposure to NO2 can cause respiratory effects including airway inflammation in healthy people and increased respiratory symptoms in people with asthma. NO2 creates ozone which causes eye irritation and exacerbates respiratory conditions, leading to increased visits to emergency departments and hospital admissions for respiratory issues, especially asthma.

Sulfur Dioxide (SO2)

Sulfur dioxide is a gas. It is invisible and has a nasty, sharp smell. About 99% of the sulfur dioxide in air comes from human sources. The main source of sulfur dioxide in the air is industrial activity that processes materials that contain sulfur, eg the generation of electricity from coal, oil or gas that contains sulfur.

Sulfur dioxide affects human health when it is breathed in. It irritates the nose, throat, and airways to cause coughing, wheezing, shortness of breath, or a tight feeling around the chest. The effects of sulfur dioxide are felt very quickly and most people would feel the worst symptoms in 10 or 15 minutes after breathing it in.

Air Quality Index


FlightLog Air Quality Index

The app shows a global Air Quality Index, calculated by World Air Quality Index following NowCast as defined by the US-EPA 2016 standard : 0(GOOD) to +300(BAD) with the main pollutant. Below are the index related to each pollutant. The number is the AQI according to your GPS location. By taping on the field, you can have detailled source and update data time, as detailed health implications. The data comes from 10000 air quality stations around the world.

US-EPA 2016 standard


AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 – 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

You need internet connection.

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DL decode

This module will decode all DL codes with IATA definitions.

Simply enter your code (2 digits) and full decoded text will be displayed.

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FlightLog is coming with an elaborated Theodolite.


  1. Select the cloud distance (right slider)
  2. Rotate your device to align chevrons with the cross to lock on the horizontal axis (horizontal is actually corrected with the Earth curvature according to the cloud distance) : the cross is showing where you’ll fly when you’ll reach the distance.
  3. Pointing the cross above or below the cloud will display the vertical margin with clouds (don’t avoid CBs vertically ! ) and the variometer to achieve that (according your speed selected with the left slider)


  1. Select the cloud distance (right slider)
  2. Aim for the cloud side then click on the PIN button (top right) to lock the cloud position.
  3. Aim for the desired direction you want to fly : it will display the heading and the horizontal margin according to the cloud distance.

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Weather Radar (weather, winds, dust, snow, CAT)



In your FlightLog logbook, go to TOOLS > ATMOSPHERE & SPACE.


In your logbook go to TOOLS > WEATHER and a weather radar map will be displayed, centered on your GPS location.

A slider below shows the image by 10min increments (history = 2hours).


tab WINDS will display an animated winds map at surface level. The map is GPS location centered.

You can also access to a wind map centered on your flight plan by taping on the sunrise button inside MY FLIGHTS, then ATMOSPHERE. You’ll have your flight plan displayed over a wind surface map and best speed flight level calculated (by integrating all the atmosphere column winds between FL200 and FL 450).

Select a FL to display wind at selected altitude.

Wind data from NCEP NOAA.


tab DUST will display a dust map (Dust Aerosol Optical Depth at 550nm).



tab SNOW will display a snow map (per cent frozen precipitation on ground).

Snow data from NCEP NOAA.

CAT (Clear Air Turbulence)

tab CAT will display a Clear Air Turbulence map (per cent).

Select a FL to display turbulence at selected altitude.

Snow data from World Area Forecast System (WAFS).

See also :

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Totals & Stats

Flight Time Limitation

This is a simple donut representation of your limitations (28 days, 90 days, and 12 months). You can edit these values by clicking on 28 DAYS LIMIT, 90 DAYS LIMIT, 12 MONTHS LIMIT, CALENDAR YEAR LIMIT… buttons below.

The limits depend on EASA/FAA settings (go to SETTINGS tab) :

  • EASA : 28 DAYS (default = 100H) | 12 LAST MONTHS (default = 1000H) | CALENDAR YEAR (default = 900H)
  • FAA : 14H (default = 9H) | 672H (default = 100H) | 365 DAYS (default = 1000H)

For Flight Duty Period go to FDP tab.

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Destination Map

You access the MAP via SUMMARY > STATS then MAP


All your destinations are here. The ATC tower shows your main airport.

Note : Commercial Flights and General Flights will show up. For Commercial Flights block times must be real times, not scheduled (it means you have to confirm real departure and arrival times).

iOS ONLY (WebGL capable devices):

 By pressing Show 3D Earth it will display a full 3D map you can zoom or rotate. It can slow down your app if you display it  multiple times, due to high processor working.

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Projected Flight Time Limitation

The standard values for limitation is the FTL one (100H within 28days) but you can edit these values by typing on LAST 28 DAYS button and 28 DAYS LIMIT 100H button (below).

This curve shows your cumuled time since 28 days (or your value), with a projection until next 28 days, as you can be aware of your maximum flight time allowed. You can also see your next expiring certificates.

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Total and Stats



This is a summary of your flights including amazing statistics. The stats are sorted by 28days – 90days – All Time – Current Year/Month.

You can edit your 30days/90days/year limit by clicking on these fields.

By activating the toggle “Extended Stats” you’ll display more statistics like Equivalent distance (did you ever wonder how many times you flew the Earth-Moon distance, or how light-years ? (I mean minute-year 😉 )


You can see how many liters of fuel per 100km you burned, or how many PAXkm/L did you carry, how many tons of CO2 did you emit.

The green VALIDITY is related to your recent experience (3 TO and 3LND in last 90 days in the case of Single Type Rating. The Dual Type Rating is also supported, including SIM experience)

The white bubbles (in the image above the value is 4) represents the numbers of SIM takeoffs and SIM landings.


The graph shows your monthly flight time. By clicking on the button MONTHLY/YEARLY/TYPE you’ll display your flight time accordingly.


Here you can select a date range to display total SIC / PIC / INS / NIGHT / TAKEOFF / LANDING


This part represents your global delays on all your flights range. The blue bell curve is the OUT delay, the grey one the IN delay.

You can edit your desired range by sliding the left and right handles to change start and end dates.

Below are the numeric values extracted from the curves :

  • MOST OF THE TIME is the delay more often encountered (in term of number of flights). Not very representative although.
  • AVERAGE : the classic mean. It takes into account all flights, it means if you have 99 flights on time and 1 flight with an excessive delay, your mean will be very impacted.
  • MEDIAN : like a mean, but the extreme values are ignored. This is the more representative value.

D0 : less than 1 min (and ahead of schedule)

D3 : less than 3 min

D15 : less than 15 min

>15 : more than 15min

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Flight Duty Period

Flight Duty Period

Flight Duty Period

The FDP view appears in a monthly calendar view. You can choose between EASA and FAA (Settings tab)


  • glisser vers la gauche ou droite le calendrier : permet de changer de mois
  • cliquer sur un jour : les vols du jour seront affichés avec le Cmt, TSV, TSVmax, FTLmax (EASA) etc…
  • cliquer sur un vol : à chaque clic un scénario s’affiche en haut de page (départ en avance de 5′, en retard de 5′, vol accéléré, etc) avec le Delta paie.

Pour les FDP, l’appli affiche le TSVMAX (MANEX) et le FDPMAX (EASA) sans la marge CDB


  • slide to left/right : switch month.
  • click on a day : flights of the day will be displayed with FDP, FDPmax and acclimatization status. FDPmax (1|2|3 flight crew) depends on your settings (EASA  or FAA rules)
  • Note : Flight Time Limitations are visible on Totals & Stats tab.


Flight Duty Period is computed from real flight times.Select your crew configuration (2-3-4 crew) to check FDP. By default FDP starts 1H before first flight OUT-time (by default) and ends at the last flight IN-time. You can setup your own duty settings in Settings page.


FDPmax is computed from your schedule with FAA FAR117 or EASA rules, considering flight times and acclimatization. It displays FDPmax with 1, 2 or 3 flight crews, and LATEST IN time (without CPT margin)


FlightLog use EASA | FAA rules to compute crew acclimatization, considering timezone and rest.



Please note that calculation for Long-Haul may be inaccurate for the time being (Work In Progress)

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Airports Statistics

Airports Statistics

You can access STATS via the SUMMARY page and clicking on STATS> button in the bar.




By clicking on an airport you’ll display the RWY you used for takeoff and landing.

Slide to the left to access to further stats.


By the same way, by clicking on airport you’ll access to your delay (global and by airport).

D0 : less than 1 min (and ahead of schedule)

D3 : less than 3 min

D15 : less than 15 min

>15 : more than 15min

By sliding to the left again, you can see the outcome of your DL code in terms of minutes.


By clicking on Stands button you can see all your parking positions, by airport.


By filling fuel data within your flights (fuel burnt, estimated fuel burnt) you can display the average over/under fuel consumption per destination.

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Destination Map

You access the MAP via SUMMARY > STATS then MAP


All your destinations are here. The ATC tower shows your main airport.

Note : Commercial Flights and General Flights will show up. For Commercial Flights block times must be real times, not scheduled (it means you have to confirm real departure and arrival times).

iOS ONLY (WebGL capable devices):

 By pressing Show 3D Earth it will display a full 3D map you can zoom or rotate. It can slow down your app if you display it  multiple times, due to high processor working.

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Here are the global settings. You can select toggles if you want to display extended stats, time dilation, etc…


by selecting EASA or FAA you can check your Flight Time Limitation (TOTALS&STATS tab) and Flight Duty Periods (FDP tab) according to EASA or FAA rules.


by selecting IATA or ICAO you can enter IATA/ICAO airport code while creating a new flight. Anyway, if IATA code exists, airports will be displayed by IATA code.


by selecting HH:MM or HH:MM:SS you choose the time format for OUT|IN block times. HH:MM:SS is the ACARS format.


Select this choice will display the right stats according to your activity (pax/cargo)


You can select your preference : LIGHT or DARK mode. Choosing AUTO refers to your device dark mode settings.


You can edit your notifications preferences. FlightLog will not send too many notifications, only for important news. A sub-choice is concerning Space Weather notifications you can enable/disable here.


Select this choice will auto update your flight times. As soon as you reach some network, FlightLog will search for any flight time to be updated automatically. Your flights must be max 7 days old. You can also pull to refresh flights list to update.


By pushing this button you can edit your own airline duty time rules. By default it’s 01:30 before flight, 00:00 after.


You can here activate the Time Dilation option : time dilation according to Einstein theories will be displayed under each flight and cumulated ones in SUMMARY page.


Activating this tab will show extended stats as distance equivalent (earth-sun, year-light –second-light I mean– etc…) CO2e rejected and radiation dose received.


Activating this tab will show OPERATIONAL DATA buttons within your flighs. See section OPS Data for more details.


will calculate in batch the total radiation received for all flights, based on block time and fixed altitude of FL370. Be aware clicking this button will erase all your previously computed dose with specific altitude you may have done.


Deprecated since V2.2.3
will activate the fields IFR/VFR and Night time within each flight.


 is only for AF pilots.


Activate this if you fly on mixed type rating (for time being only B777/B787 and A330/A350 are automatically detected)


select and fill your previous total of flight hours to take into account your total experience in your flight log.


This will fix some troubles on your log, by reindexing all your flights. Use it if your log is no more responding. This will also remove all duplicated flights in case of bad importation, and force your flights to be considered as flown, and not anymore scheduled. Please save your log first.

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You can add all of your certificates, licences, type ratings, medical etc… Specify an expiry date and end date will be displayed under TOTAL&STATS > Limitations.


You can also take a picture of it, which will be stored within your app. After a tap on it you can zoom into by pinching.


NOTE : pictures will not be saved on server/Dropbox nor synced between your devices.

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Export PDF Logbook (EASA and FAA)

Export your logbook in PDF

Here you can export you logbook in PDF format and print it.

 Set your options

  • Set your last name and first name
  • Set your signature

  • Choose EASA or FAA format
  • Set the number of lines per page you want
  • Select Show inconsistent data if you need to check everything is fine. If FlightLog detect an inconsistent total time, it will show an *error* at the bottom of each PDF page. Formerly you’ll have a message if TOTAL TIME not fits PIC+SIC+DUAL time, for example if you missed to set up your function on board on any flight.

Generate the PDF

  • press GENERATE, and wait for PDF showing.


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Other Logbooks

Import your Log

Import your Log

You can import you old logbook into FlightLog in order to have all your flights, although it’s not recommended.

Importation modules are compatible with LogTen Pro, CrewLounge PilotLog, RosterBuster,, CommOrg, OffBlock

You can also import any csv file, with column matching.


  1. Go to SYNC > Dropbox and login with your Dropbox account.
  2. Within your LogTen Pro app (OS or IOS), export your logbook with the following options selected : Export > Export Flights (Tab) and save the file in your Dropbox in the Applications>FlightLog Sync folder (it’s better to first SAVE your log in Dropbox as the app will create automatically the folder for you). You can do the same for your aircrafts list (Export Aircraft option). Please check your file is named “Export Flights.txt” or “Export Aircraft.txt”. NOTE : do not export the file “aircraft-types” in your Dropbox folder.
    Then in your FlightLog app, go to SYNC tab > Dropbox, and you should see buttons to import flights and aircrafts. If not, please check your exported files are in the right folder.


  1. Go to SYNC > Dropbox and login with your Dropbox account.
  2. Export your mcc logbook as a CSV file. Rename it as “Export Flights.csv” Save it in your Dropbox in the Applications>FlightLog Sync folder.
  3. wait for data generation.


  1. Go to SYNC > Dropbox and login with your Dropbox account.
  2. Export your Rosterbuster logbook as a CSV file. Save as it in your Dropbox (don’t rename it) in the Applications>FlightLog Sync folder.
    Then in your FlightLog app, go to SYNC tab > Dropbox, and you should see buttons to import flights. Your aircrafts will be imported also. If the buttons don’t show up, please double check your exported files are in the right folder.
  3. wait for data generation.


  1. Go to SYNC > Dropbox and login with your Dropbox account.
  2. Export your CommOrg logbook as a CSV file. Save as it in your Dropbox (don’t rename it, it should be excel flight.csv and excel sim.csv) in the Applications>FlightLog Sync folder, one at a time.
    Then in your FlightLog app, go to SYNC tab > Dropbox, and you should see buttons to import flights. Your aircrafts will be imported also. If the buttons don’t show up, please double check your exported files are in the right folder.
  3. do the same thing with excel sim.csv to import sim sessions.
  4. wait for data generation.


  1. As OffBlock doesn’t have export option, you have to contact OffBlock developers to receive your flight data. You should receive a .csv or .xls file.
  2. Rename this file to Export Flights.csv and save as it in your Dropbox in the Applications>FlightLog Sync folder.
    Then in your FlightLog app, go to SYNC tab > Dropbox, and you should see buttons to import flights. Your aircrafts will be imported also. If the buttons don’t show up, please double check your exported files are in the right folder.
  3. wait for data generation.


If you have an other logbook software, or even your own Excel file, you can try to import it within FlightLog logbook.

  1. Export/Convert your logbook in .csv format.
  2. Rename it to MANUAL.csv
  3. Arrange eventually your data to better fit the following format.
  4. Save it in your Dropbox in the Applications>FlightLog Sync folder (it’s better to first SAVE your log in Dropbox as the app will create automatically the folder for you)
  5. in FlightLog app go to : SYNC>Dropbox and press MANUAL IMPORT. If the button doesn’t appear, check that your csv file is in the right folder.
  6. Match the right fields then press IMPORT. The blue fields are mandatory.
  7. wait for data generation.

Recommended format for importation:





Note : It’s not recommended to import your old logbook : stats will not be available and it can generate some bugs as logbooks data are not in same format.

It’s far more recommended to log your total flight time in SETTINGS tab, under  SETUP TOTAL FLIGHT TIME.

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Export your Log

Export your FlightLog logbook

You can export your logbook in CSV format in order to import it in another logbook (MCC Pilot Logbook, LogtenPro…).

Go to SYNC > Dropbox, login to your account, and just press Export CSV. Your exported file named exportCSV.csv should be saved in your Dropbox.


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Crew Connect

With this module you can contact and chat with any crew using FlightLog. You have a special request ? You need to ask for a jumpseat to the captain ? Just send him a message.

1 Search a crew member

Fill a flight number and a date, if the flight exists it will be added in your flights list. Tap on it and on the crew member name to send a message.

2 Send a message

Tap on the name, write your message, send.

You will receive a notification in case of answer. Or stay on this page, the chat is real time.

Pull to refresh on the left part (flights list) to refresh messages, the flights will be sorted with the last message time.


You don’t want your flights searchable ? Go to Settings and disallow Crew Connect.

You need to fill your name and first name to be searchable, and allow notifications to be informed in case of message reception.

IMPORTANT NOTICE : your last name will never show. Only the first letter, for security reasons.

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Time Dilation

What is Time Dilation ?

Is it true pilots are traveling in time?

Actually, yes, and I’m not talking about jetlag… you can travel in time, not your OWN time of course, but OTHERS’ time. This thanks to a concept known as gravitational and velocity time dilation, explained by Einstein’s theories of General and Special relativity. The absolute Time doesn’t exist, everyone has his own universe line. As you can travel different distances to go from A to B, you can travel different durations. Depending of your speed and gravity. Your life has always the same duration (for yourself), but not for motionless people. For these people, by travelling you are aging slower.

Unfortunately, the time travel experienced by you or an astronaut in International Space Station is so small that it’s hardly noticeable,
sometimes even measured by picto seconds – that is, one trillionth, or one millionth of one millionth of a second, or 0,000000000001 seconds.
But it is nevertheless time travel, and it will accumulate during the course of your life.

So as a pilot flying at Mach 0.8 or greater, wouldn’t it be awesome if there was a way for you to keep track of your accumulated progress as a time traveler? This FlightLog app help you do that for the fun part…

Some explanations

There are actually two types of time dilation:

  1. Relative velocity time dilation
  2. Gravitational time dilation

This app calculates both. You have just to activate the toggle in SUMMARY/SETTINGS tab.

  1. Flying at high speed makes you aging less quickly than your neighbors staying in their garden. You’ll come back home younger than if you had stayed (depending on which direction you fly, due to Earth spinning)
  2. But unfortunatly, you fly at high altitude, 10 kilometers or so, making the gravity weaker than on ground : you are aging more quickly at high altitude than on earth… Gravity slows down the time : did you know Earth’s center is two years younger than its surface ?

This app will merge these two effects for each flight. The app calculates the orthodromic distance and your speed to compute the velocity time dilation, taking into account the bearing of flight and the latitude. The app also calculate the gravitational time dilation using an average cruising altitude of 11 km. You can check the cumulated effect by month, year, and all time.




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FlightLog uses open source ressources.


Some icons used in this app are from Icons8 and TheNounProject

Flight Instruments

Based on JQuery Flightindicators and Richtr

Aircraft location

Location extracted from aircraft’s ADS-B data in live

Airports Charts

Charts are hand-georeferenced and not up-to-date.

Airlines flags

Flags from TypischTouristik.

Winds and Air Quality

NOAA and other satellites (GFS, Copernicus…)

Aircraft pics

are from JetPhotos.

OPS Data charts

are from Amcharts.

Weather Data

from Darksky and Tomorrow

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