Best UNISTELLAR App Alternatives in 2026
Updated
20 platforms from astronomy apps ranked against UNISTELLAR App on the same published basis.
- 1UNISTELLAR App vs Cosmic Watch
- 2UNISTELLAR App vs Solar System Scope
- 3UNISTELLAR App vs DWARFLAB App
- 4UNISTELLAR App vs NASA Eyes
- 5UNISTELLAR App vs Night Sky
- 6UNISTELLAR App vs Star Chart
- 7UNISTELLAR App vs BXA
- 8UNISTELLAR App vs Celestia
- 9UNISTELLAR App vs squishyplanet
- 10UNISTELLAR App vs Luminos Pro
- 11UNISTELLAR App vs Seestar App
- 13UNISTELLAR App vs Sky Guide
- 14UNISTELLAR App vs Halotools
- 15UNISTELLAR App vs SkySafari
- 16UNISTELLAR App vs SpaceEngine
- 17UNISTELLAR App vs SkyPortal
- 18UNISTELLAR App vs Star Walk 2
- 19UNISTELLAR App vs Gaia Sky
- 20UNISTELLAR App vs Heavens-Above
- 21UNISTELLAR App vs KStars
UNISTELLAR App alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Cosmic Watch | 6.0 | Free plan | $0.42/mo | Android, iOS, Mac |
| 2 | Solar System Scope | 6.0 | Free plan | Free | Android, iOS, Mac, Web, Windows |
| 3 | DWARFLAB App | 5.9 | Free plan | Free | Android, iOS |
| 4 | NASA Eyes | 5.9 | Free plan | Free | Android, iOS, Linux, Mac, Web, Windows |
| 5 | Night Sky | 5.9 | Free plan | Free | Android, iOS, Mac |
| 6 | Star Chart | 5.9 | Free plan | Free | Android, iOS, Mac, Windows |
| 7 | BXA | 5.8 | Free plan | Free | Linux |
| 8 | Celestia | 5.8 | Free plan | Free | Android, iOS, Linux, Mac, Web, Windows |
| 9 | squishyplanet | 5.8 | Free plan | Free | Linux, Windows |
| 10 | Luminos Pro | 5.6 | No | $3/mo | iOS, Mac |
| 11 | Seestar App | 5.6 | No | — | Android, iOS, Mac, Windows |
| 13 | Sky Guide | 5.5 | No | — | iOS, Mac |
| 14 | Halotools | 5.4 | No | — | Linux |
| 15 | SkySafari | 5.3 | No | — | Android, iOS, Mac, Web |
| 16 | SpaceEngine | 5.3 | No | — | Windows |
| 17 | SkyPortal | 5.2 | No | — | iOS, Android |
| 18 | Star Walk 2 | 5.2 | Free plan | $0.50/mo | Android, iOS |
| 19 | Gaia Sky | 5.1 | No | — | Windows, Mac, Linux |
| 20 | Heavens-Above | 5.1 | No | — | Web, iOS, Android |
| 21 | KStars | 5.1 | No | — | Windows, Mac, Linux |
Make your platform an alternative to UNISTELLAR App
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about UNISTELLAR App alternatives
What is the best alternative to UNISTELLAR App?
Cosmic Watch, number 1 in astronomy apps with a score of 6.0 out of 10. The others here: Solar System Scope, DWARFLAB App, NASA Eyes and 16 more.
What is the best free alternative to UNISTELLAR App?
Cosmic Watch is the best-ranked alternative with a free plan. 10 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.