249+ iOS apps curated and reviewed
Civil Twilight Calculator is the household name in civil twilight calculator, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $0.99 | 5.0★ (5) | No | No | Sep 2026 | |
| 2 |  | $0.99 | 3.3★ (6) | No | No | Aug 2026 | |
| 3 |  | Free | 4.7★ (61K) | No | No | Sep 2026 | |
| 4 |  | Free | — | — | No | Jun 2026 | |
| 5 |  | Free | 1.7★ (3) | No | No | Aug 2026 | |
| 6 |  | Free | — | No | Yes | May 2026 | |
| 7 |  | Free was $3.99 | — | No | No | Aug 2026 | |
| 8 |  | Free | 3.0★ (1) | No | No | May 2026 |
Calculate precise daylight and twilight times for pilots and outdoor professionals. This app performs all celestial calculations internally, requiring no internet connection for core functionality. It supports GPS locations, global airports, and even addresses when online, with accurate historical and future data.
This app calculates the sun's position and civil twilight times for outdoor enthusiasts. It works offline and without a phone connection, providing accurate data for pilots, boaters, and hikers anywhere in the world.
This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
