Best ISS Detector Alternatives in 2026
Updated
20 apps from astronomy apps ranked against ISS Detector on the same published basis.
- 1ISS Detector vs NASA Eyes
- 2ISS Detector vs Celestia
- 3ISS Detector vs Solar System Scope
- 4ISS Detector vs Cosmic Watch
- 5ISS Detector vs Night Sky
- 6ISS Detector vs Star Chart
- 7ISS Detector vs DWARFLAB App
- 8ISS Detector vs squishyplanet
- 9ISS Detector vs BXA
- 10ISS Detector vs Seestar App
- 11ISS Detector vs Luminos Pro
- 12ISS Detector vs Sky Guide
- 13ISS Detector vs UNISTELLAR App
- 14ISS Detector vs Gaia Sky
- 15ISS Detector vs Star Chart
- 16ISS Detector vs Aladin Desktop
- 17ISS Detector vs Halotools
- 18ISS Detector vs Heavens-Above
- 20ISS Detector vs KStars
- 21ISS Detector vs Singularity
ISS Detector alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | NASA Eyes | 6.8 | Free plan | Free | Android, iOS, Linux, Mac, Web, Windows |
| 2 | Celestia | 6.7 | Free plan | Free | Android, iOS, Linux, Mac, Web, Windows |
| 3 | Solar System Scope | 6.7 | Free plan | Free | Android, iOS, Mac, Web, Windows |
| 4 | Cosmic Watch | 6.6 | Free plan | $0.42/mo | Android, iOS, Mac |
| 5 | Night Sky | 6.6 | Free plan | Free | Android, iOS, Mac |
| 6 | Star Chart | 6.6 | Free plan | Free | Android, iOS, Mac, Windows |
| 7 | DWARFLAB App | 6.5 | Free plan | Free | Android, iOS |
| 8 | squishyplanet | 6.4 | Free plan | Free | Linux, Windows |
| 9 | BXA | 6.3 | Free plan | Free | Linux |
| 10 | Seestar App | 5.7 | No | — | Android, iOS, Mac, Windows |
| 11 | Luminos Pro | 5.5 | No | $3/mo | iOS, Mac |
| 12 | Sky Guide | 5.5 | No | — | iOS, Mac |
| 13 | UNISTELLAR App | 5.5 | No | — | Android, iOS |
| 14 | Gaia Sky | 5.4 | No | — | Windows, Mac, Linux |
| 15 | Star Chart | 5.4 | No | — | Windows, Mac, iOS, Android |
| 16 | Aladin Desktop | 5.3 | No | — | Windows, Mac, Linux |
| 17 | Halotools | 5.3 | No | — | Linux |
| 18 | Heavens-Above | 5.3 | No | — | Web, iOS, Android |
| 20 | KStars | 5.3 | No | — | Windows, Mac, Linux |
| 21 | Singularity | 5.3 | No | — | iOS, Android |
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Questions about ISS Detector alternatives
What is the best alternative to ISS Detector?
NASA Eyes, number 1 in astronomy apps with a score of 6.8 out of 10. The others here: Celestia, Solar System Scope, Cosmic Watch and 16 more.
What is the best free alternative to ISS Detector?
NASA Eyes is the best-ranked alternative with a free plan. 9 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.