SkyPortal vs Star Chart
| SkyPortal | Star Chart | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | iOS, Android | Windows, macOS, iOS, Android |
| Free plan | Yes | Yes |
| Platform coverage | mobile | cross-platform |
| AR sky view | Yes | Yes |
| Telescope control | Yes | — |
| Learning content | Yes | Yes |
| Offline access | — | Yes |
Both are listed in Best Astronomy Apps. On Samsung Mobile US Press, Star Chart scores higher on our published basis.