Archived App (Last seen on 23 Jun 2025)
This is an archived listing of the app previously available on the App Store.
This navigation tool helps confirm your location using sun sights, especially when GPS signals are unreliable. It also serves as an educational aid for learning astro-navigation techniques.
4.0
June 2, 2015
This app has been updated by Apple to display the Apple Watch app icon. Upgraded to IOS 7+ UI and to 64bit architecture.
MoreiSextant is a sun sign reduction program used to confirm your location, especially when GPS signals are problematic. It also functions as a tool for learning astro-navigation.
You take a sun sight with a sextant and input conditions like pressure and temperature. iSextant then uses this data with an assumed position to calculate GHA, Declination, Azimuth, and Intercept.
Yes, the description explicitly states that iSextant can be used as an aid to learning astro-navigation, providing calculations like GHA and Declination.
You need to take a sun sight using a sextant and note other conditions such as pressure and temperature. An assumed position is also required for calculations.
The description does not specify internet requirements for core functionality, but it is designed to work when GPS signals are problematic, suggesting offline utility for its primary calculations.
iSextant is supported on iPhone, iPad, and iPod devices.
The latest version, 4.0, was released on June 2, 2015. The app has not received updates since then.
iSextant has an age rating of 4+.
