237+ iOS apps curated and reviewed
The best astronomy app free daily on iPhone average 3.8★ across 237+ 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 | 1.0★ (1) | No | Yes | Oct 2026 | |
| 2 |  | Free | 3.9★ (6.9K) | Yes | Yes | Nov 2026 | |
| 3 |  | Free | 4.5★ (24) | Yes | Yes | Oct 2026 | |
| 4 |  | Free | 4.6★ (25K) | No | Yes | Nov 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | Free | 4.8★ (290) | No | Yes | Oct 2026 | |
| 7 |  | Free | 4.6★ (213) | No | Yes | Nov 2026 | |
| 8 |  | Free | 4.7★ (25K) | No | Yes | Nov 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 an interactive 3D sky map. Identify stars, planets, and constellations using augmented reality. Learn fascinating facts about space objects and track celestial bodies.
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.
