8+ iOS apps curated and reviewed
Looking for free ez sextant apps? 3 of our 8+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
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.
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.
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.
Access 100 years of nautical almanac data digitally, from 1960 to 2059. This app offers enhanced navigation features like instant page access, highlighting, and zoom, supporting celestial navigation activities offline.
Explore a world based on a six-base numbering system. This app offers tools to convert numbers, display time and dates, and perform calculations using seximal. It also includes an Apple Watch app and iOS widgets for convenient access.
This app provides pre-computed lunar distance tables and guidance for performing celestial navigation calculations, similar to methods used over a century ago. It includes all necessary tables and functions to assist users in planning, observing, and computing Greenwich time for lunar observations, with optional output to printable forms.
