Civil Twilight Calculator at App Store analyse

App power index: 180 (based on ranks around App Stores today)
Weather Lifestyle
Developer: Aviametrix, LLC
Price: 0 free
Current version: 1.25, last update: 1 year ago
First release : 21 Oct 2016
App size: 8.6 Mb
4.8 ( 3248 ratings )
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Estimation application downloads and cost

> 3.96k
Monthly downloads
~ $ 1.62k
Estimation App Cost


Everyone who works outside needs to know about daylight hours!

Pilots often need to know when night occurs. The FAA uses several different times of day for calling night vs. day, depending on the purpose.

Most Apps find the twilight times by going to a database on the internet. That means you need a network connection to use them.

This app is unique because it does all the celestial calculations internally! No internet required! Find the start of night at your destination while you are still in the air!

Lots of features:

Find sunrise and sunset at your current GPS location. Update sun calculations and sun dial every minute and every 10 km of movement.

Find sunrise and sunset at any airport in the world (The app has built-in coordinates for 11,000 airports around the world)

If you are connected (WiFi or Cell Data), you can look up the twilight times at any address in the world. Internet or cell access now also improves time zone accuracy.

The App calculates sunrise and sunset accurately forwards and backwards in time for 60 years.

The App calculates regular (standard) Sunrise/Sunset, Civil Twilight, Nautical Twilight, and Astronomical Twilight.

The App contains the relevant FAA regulations if you need a refresher!
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Available in countries
Country Price
Canada 0.99 CAD
China 8 CNY
France 0.99 EUR
Germany 0.99 EUR
Italy 0.99 EUR
Netherlands 0.99 EUR
Portugal 0.99 EUR
Spain 0.99 EUR
Poland 1.09 EUR
UK 0.99 GBP
India 99 INR
Japan 100 JPY
Korea, Republic Of 1100 KRW
Poland 4.99 PLN
Russia 99 RUB
Turkey 29.99 TRY
USA 0.99 USD
Korea, Republic Of 1.09 USD
Ukraine 0.99 USD
Available for devices
iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX, iPad75, iPad76, iPhoneXS, iPhoneXSMax, iPhoneXR, iPad812, iPad834, iPad856, iPad878, iPadMini5, iPadMini5Cellular, iPadAir3, iPadAir3Cellular, iPodTouchSeventhGen, iPhone11, iPhone11Pro, iPadSeventhGen, iPadSeventhGenCellular, iPhone11ProMax, iPhoneSESecondGen, iPadProSecondGen, iPadProSecondGenCellular, iPadProFourthGen, iPadProFourthGenCellular,