SpaceSight24 ISS & Starlink

See the International Space Station tonight. The ISS passes over your location several times a week, and most people miss it because they don't know when to look up. SpaceSight24 tells you when and where.



Know when to look up

Get an ISS alert 15 minutes before a pass, with direction, height, and brightness.



See what's above you

Watch satellites move live in 3D over your location, including the ISS, GPS, weather satellites, and Starlink.



Track in augmented reality

Point your phone at the sky to see satellites and their paths.



Works offline

Download data before you go. Useful for dark-sky sites and camping trips.



For photographers

Find out when the ISS is brightest and highest for long-exposure shots.



For radio operators and enthusiasts (Pro)

- Doppler shift and contact window calculations for amateur radio satellites

- NOAA weather satellite pass planning

- ISS solar and lunar transit predictions

- 500+ research satellites, debris tracking, and emergency satellites (COSPAS-SARSAT)

- Earth imagery using public NASA data



Free

ISS tracking, satellite alerts, live 3D sky map, offline mode, and educational details.



Pro

Radio Doppler tracking, weather satellite planning, astrophotography tools, research satellites, and NASA imagery and debris tracking.



Location access is used to calculate accurate pass times. See our privacy policy for details on how data is handled.



SpaceSight24 is an independent app and is not affiliated with NASA, SpaceX, or any satellite operator.

Recent changes:
- Fixed the Home screen freezing and not scrolling on some devices
- Buttons at the bottom of Home are no longer hidden behind the AR button
- ISS crew info is up to date and stays accurate when you're offline
- Better support for tablets and foldables: the app now rotates freely on large screens
- Full-screen display on Android 15 and newer
- Amateur radio (APRS) no longer sends your location over the network
- Smaller, faster app