Look4Sat: Satellite tracker

Look4Sat: Satellite tracker

Satellite tracker and pass predictor for Android

Arty Bishop Science & Education

Screenshots

Screenshot of Look4Sat: Satellite tracker Screenshot of Look4Sat: Satellite tracker Screenshot of Look4Sat: Satellite tracker Screenshot of Look4Sat: Satellite tracker

Description

Track satellite passes with ease! Thanks to Celestrak and SatNOGS you have access to over 9000 active satellites. You can search the entire database by NORAD Catalog Number or the satellite's name. Orbital positions and passes are calculated relative to your location. To get reliable data make sure to set the station position via the app Settings. The application is built using Kotlin, Coroutines, Jetpack Compose and Navigation. It is now and always will be completely ad-free and open-source. Main features:

  • Predicting satellite positions and passes for up to 10 days
  • Showing the list of currently active and upcoming satellite passes
  • Showing the active pass progress, polar trajectory and transceivers info
  • Showing the satellite positional data, footprint and ground track on the map
  • Custom TLE satellite data import is available via Three Line Element .txt files
  • Offline first: calculations are made offline. Weekly TLE data update is recommended.

What’s new (4.4.9)

* Added AOS/LOS timers to PassItem and NextPassRow components
* Replaced Swipe-to-Filter functionality with a Search bar
* Tweaked SSTV image saving flow, added permissions #264
* Fixed linear Doppler calculator and offset restore #265
* Corrected CelestialComputer moon calculations error #266
* Added Look4Sat-rPi project ref to app Settings/README #267

Versions

Version Date Size Requires Android Download
4.4.9 current
2b6b840092abc242…
2026-10-14 7.6 MB API 24
4.4.8
5ecef4bea18b3304…
2026-09-29 7.6 MB API 24
4.4.7
3f266103dcc4f1b6…
2026-09-15 7.6 MB API 24

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Network stateCheck whether and how the device is connected.
  • ACCESS_LOCAL_NETWORK
  • Approximate locationDetermine the location via the network.
  • Precise locationDetermine the location via GPS.
  • BluetoothConnect to Bluetooth devices.
  • BLUETOOTH_ADMIN
  • Bluetooth connectionConnect to paired Bluetooth devices.
  • Bluetooth scanSearch for nearby Bluetooth devices.
Show 5 more permissions
  • Internet accessSend and receive data over the internet.
  • MicrophoneRecord audio.
  • Write storageCreate and change files on the device storage.
  • look4sat.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • Read storageRead files on the device storage.

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