Frequently Asked Questions

This is the default behaviour of Apple Watch - it automatically returns to the watch face after a period of inactivity. You can change this in the Apple Watch app on your iPhone: go to General › Activate on Wrist Raise › Resume Previous Activity. This setting keeps your GoSunWatch session active when you raise your wrist.

Apple's watchOS guidelines restrict third-party apps from displaying the current time as a primary element. The watch app shows relative time from the 12 o'clock position through to sunrise or sunset events, which still provides useful observational context while complying with platform guidelines.

Location data is essential for accurate sky calculations. The app uses your position to precisely calculate sunrise and sunset times, moon phases, planetary positions relative to your horizon, and - in GoSatWatch - to predict exactly when and where satellites will be visible from your specific location. Your location data is never shared or stored externally.

These terms describe three stages of twilight based on how far the sun has set below the horizon:

Civil Twilight - Sun is 0–6° below the horizon. Enough light to see clearly; outdoor activities are still possible without artificial light.

Nautical Twilight - Sun is 6–12° below. The horizon is still visible at sea, but fine detail becomes difficult. Stars begin appearing.

Astronomical Twilight - Sun is 12–18° below. Sky is dark enough for most astronomical observation, though the faintest objects may still be affected by residual glow.

Yes - GoSkyWatch Planetarium calculates planetary and star positions mathematically and does not require an active internet connection for the core sky view. GoSatWatch does benefit from periodic data refreshes to update satellite orbital elements, which improves pass prediction accuracy over time.

GoSkyWatch and GoSatWatch are compatible with modern iPhone and iPad devices running recent iOS versions. The apps are universal - one purchase works on all your Apple devices. Please check the App Store listing for the current minimum iOS version requirement.

GoSatWatch makes orbital data updates simple - just tap the refresh button in the app and fresh data is downloaded from official orbital databases. You can also configure automatic updates so the app stays current without manual intervention. Keeping data fresh improves satellite pass prediction accuracy, especially after orbital manoeuvres.

GoSatWatch Satellite Tracking is available for $9.99 USD on the App Store. This is a one-time purchase - no subscriptions, no in-app purchases required. The purchase covers both iPhone and iPad. GoSkyWatch Planetarium pricing is listed separately on the App Store.