250+ iOS apps curated and reviewed
The best celestial navigation apps on iPhone average 4.3★ across 250+ 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 | 4.3★ (10) | No | Yes | Oct 2026 | |
| 2 |  | $1.99 | 4.2★ (15) | No | No | Oct 2026 | |
| 3 |  | Free | 5.0★ (3) | No | No | Oct 2026 | |
| 4 |  | $29.99 | 4.9★ (26) | No | No | Oct 2026 | |
| 5 |  | Free | 4.8★ (378K) | No | Yes | Oct 2026 | |
| 6 |  | Free | — | No | No | Oct 2026 | |
| 7 |  | Free | — | No | Yes | Oct 2026 | |
| 8 |  | $49.99 | 4.9★ (8) | No | No | Oct 2026 |
This app provides tools for celestial navigation, offering computations for celestial bodies and sight reductions. It includes an offline perpetual almanac and allows for quick capture of observation data for accurate course adjustments.
This application assists with celestial navigation by performing sextant sight reduction calculations. It displays intermediate numbers for verification and can draw lines of position on a map. Features include a perpetual nautical almanac and a star finder to identify celestial bodies.
This app provides a comprehensive offline celestial navigation toolkit. It calculates celestial body positions, sunrise/set times, and sky charts. It also offers tools for compass error correction and position fixing, all without requiring an internet connection.
