Celestia vs Sky Guide
| Celestia | Sky Guide | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Android, iOS, Linux, macOS, Web, Windows | iOS, macOS |
| Free plan | Yes | Yes |
| Platform coverage | cross-platform | cross-platform |
| Offline access | — | Yes |
| AR sky view | — | Yes |
| Mission tracking | — | Yes |
| Learning content | — | Yes |
Both are listed in Best Astronomy Apps. On Inferse, Celestia scores higher on our published basis.