52+ iOS apps curated and reviewed
Out of 52+ sextant apps on iOS, 15 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.3★ (6) | No | No | May 2026 |
| 2 |  | Free | — | No | No | May 2026 |
| 3 |  | Free | — | No | No | Jun 2026 |
| 4 |  | Free | 5.0★ (3) | No | No | Aug 2026 |
| 5 |  | Free | — | Yes | No | May 2026 |
| 6 |  | Free | — | No | Yes | Jul 2026 |
| 7 |  | $24.99 | 5.0★ (4) | No | No | Aug 2026 |
| 8 |  | Free | 2.0★ (3) | No | No | Aug 2026 |
This app functions as a celestial navigation tool, enabling users to take altitude measurements of celestial bodies using their phone. It provides real-time star and planet identification, automatic astronomical position calculations, and a perpetual nautical almanac.
Simulate using a sextant to measure latitude by sighting the sun and horizon. Includes tools for calculating declination, local solar noon, and basic surveying.
This app helps celestial navigators accurately record UTC time for sextant sightings. It provides tactile and auditory feedback for precise time stamping, storing readings in five registers. Users can optionally photograph their sextant for later verification.
Navigate open waters using your phone's camera to sight celestial bodies. This app plots lines of position and combines them for an estimated location on a lat/lon grid. It's a powerful tool for offshore navigation without relying on GPS.
This app assists with celestial navigation training by providing a perpetual almanac, star finder chart with animation, and tools for calculating lines of position and meridian passages. It can utilize device sensors for real-time chart positioning, though a marine sextant is still required for actual navigation.
Identify stars, constellations, planets, and satellites in real-time by holding your device overhead. Explore celestial bodies with AR overlays, track satellites like the ISS, and travel through time to view past and future astronomical events. Perfect for both novice and experienced stargazers.
This app provides a comprehensive celestial navigation toolkit for sailors and enthusiasts. It allows users to navigate using celestial bodies like the sun, moon, planets, and stars, even when GPS is unavailable. The app guides users through taking sextant readings, performing calculations, and plotting positions on a map.
Identify stars, constellations, satellites, and more by simply pointing your device at the sky. This augmented reality app makes stargazing accessible to everyone, day or night. Explore celestial paths and even travel through time to view the sky on different dates.
Experience traditional maritime timekeeping with authentic ship's bell chimes and classic clock faces. Features live weather, moon phases, and a nautical alarm, all without ads or subscriptions.
This app simplifies celestial navigation using a sextant, providing tools to calculate your position at sea. It offers automated calculations or manual table access, with features for observation archiving and compass checks. Ideal for learning and practicing traditional navigation methods.
Discover exceptional coffees sourced directly from farmers worldwide. This app showcases flavorful beans from Ethiopia, Kenya, Colombia, and more, highlighting the unique origins and tastes of each roast.
This app helps you practice celestial navigation by showing every step of sight reductions and plotting lines of position. It covers calculations for the Sun, planets, and stars using standard nautical publications.
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.
Discover celestial objects with this augmented reality sky guide. Simply select a planet or star, and follow the on-screen pointer to locate it in the night sky. Explore constellations, satellites, and detailed information about planets.
This app provides a backup navigation system using the sun, similar to chart plotter satellite navigation. It requires manual sextant readings and allows users to input times and measurements to display their position on an electronic map, creating a journey track.