Heavens-Above vs OpenSpace
| Heavens-Above | OpenSpace | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web, iOS, Android | Windows, Linux |
| Free plan | Yes | Yes |
| Offline access | Yes | — |
| Platform coverage | cross-platform | cross-platform |
| Mission tracking | Yes | Yes |
| Learning content | — | Yes |
Both are listed in Best Astronomy Apps. On Everything Xiaomi, Heavens-Above scores higher on our published basis.