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AndroidPlanisphereStar Walk 2
Free

Free and open source under the GPL-3.0-or-later license.

 Freemium

A free version is offered on Google Play; paid options are not detailed in the research.

Android Android, iOS
  • Charts over 9,000 stars and all eight planets
  • Supports arbitrary times and locations
  • Real-time sky map based on your location
  • Tracks satellites such as the ISS and Starlink
  • Android only
  • Mobile only, no desktop version
  • Closed source
Downloadable app Downloadable app
Open source Closed source
License: GPL-3.0-or-later License not stated
Not stated if an account is needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 8, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.