KStars vs OpenSpace
| KStars | OpenSpace | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | Free |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | Linux, Windows |
| Free plan | Yes | Yes |
| Offline access | Yes | — |
| Platform coverage | desktop | cross-platform |
| Telescope control | Yes | — |
| Learning content | Yes | Yes |
| Mission tracking | — | Yes |
Both are listed in Best Astronomy Apps. On Freedom251, KStars scores higher on our published basis.