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.



245+ iOS apps & games curated and reviewed
With an average user rating of 4.2★, the twilight nautical category is one of the App Store's strongest. Browse all 245+ apps and games we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $0.99 | 3.3★ (6) | No | No | Aug 2026 | ||
| 2 | Free | — | Yes | No | Aug 2026 | ||
| 3 | $8.99 | 4.6★ (3.8K) | No | No | Sep 2026 | ||
| 4 | Free | 5.0★ (4) | No | No | Jul 2026 | ||
| 5 | $0.99 | 5.0★ (5) | No | No | Sep 2026 | ||
| 6 | $1.99 | — | No | No | Aug 2026 | ||
| 7 | Free | 4.7★ (281) | Yes | No | Sep 2026 | ||
| 8 | Free | 4.6★ (297) | Yes | Yes | Sep 2026 |



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.







Access NOAA Electronic Navigational Charts (ENC) for offline marine navigation. View detailed information like buoys, depths, and port features. Overlay NOAA weather maps including radar, sea temperature, and wind data.