238+ iOS apps curated and reviewed
The best astronomy app free daily on iPhone average 4.4★ across 238+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | Yes | Jul 2026 | |
| 2 |  | Free | 4.5★ (23) | Yes | Yes | Aug 2026 | |
| 3 |  | Free | — | No | No | May 2026 | |
| 4 |  | Free | 4.6★ (25K) | No | Yes | Oct 2026 | |
| 5 |  | Free | 4.8★ (2.8K) | No | Yes | Oct 2026 | |
| 6 |  | Free | 4.8★ (287) | No | Yes | Oct 2026 | |
| 7 |  | Free | 4.7★ (188) | No | Yes | Sep 2026 | |
| 8 |  | Free | 4.6★ (15K) | No | Yes | Oct 2026 |
Discover a new stunning image or video of the universe daily, accompanied by expert explanations. Save, explore past images, and share cosmic wonders with friends. Get notified for new daily discoveries.
Explore the cosmos with a 3D planetarium and real-time celestial event tracking. Identify stars and planets using your device's sensors and AR, and receive notifications for upcoming astronomical phenomena. Access detailed information and simulations from any location.
