Celestia vs Heavens-Above
| Celestia | Heavens-Above | |
|---|---|---|
| Free plan | Yes | Yes |
| Paid from | Free | Free |
| Platforms | Android, iOS, Linux, macOS, Web, Windows | Android, iOS, Web |
| Free plan | Yes | Yes |
| Platform coverage | cross-platform | cross-platform |
| Offline access | Yes | |
| Mission tracking | Yes |
Listed together in Best Astronomy Apps