Sextant — Celestial Nav is a toolkit for sailors and students to perform celestial navigation using the sun, moon, planets, and stars. Below are 12 travel, maps & navigation apps with similar functionality to Sextant — Celestial Nav, matched by what each product actually does — not ranked or scored. Explore each to find the closest fit for your use case.
Sextant Pro is a celestial navigation logbook and sight-reduction calculator for sailors and students. It provides AR sextant features, chart overlays, offline almanac data, and supports both iOS and Mac, enabling navigation without GPS.
Sextant Calculator is a specialized tool for celestial navigators, offering features like angle and time calculations, averaging, and a custom keypad. It streamlines sight reduction arithmetic for sailors, yacht skippers, and navigation students.
AsterScope is a stargazing planner that scores nightly conditions using five key factors, visualizes them, and recommends the best sky events to observe. It features interactive charts, AR overlays, and community hotspot tracking. Designed for amateur astronomers seeking optimal observation nights.
Almicantarat is a professional celestial navigation app for iOS, allowing users to use their device as a sextant to observe stars, planets, and the Sun. It features a 3D sky map and integrates with device maps for accurate navigation. Designed for sailors and astronomy hobbyists.
Astral: Sky Guide transforms your device into a real-time sky map, labeling stars, planets, and constellations as you point your phone. It offers detailed object info, a night mode, and works fully offline, making it ideal for stargazers and astronomy enthusiasts seeking an educational tool.
Bearing: Orienteering Compass is an iOS app that transforms your device into a precision navigation tool, displaying heading, altitude, speed, weather, and coordinates. It is designed for outdoor enthusiasts needing reliable orientation and environmental data.
Flat Earth Pro is an iOS app that visualizes daylight coverage, sun and moon positions, and lunar phases using an azimuthal projection. It provides real-time celestial data and event schedules for astronomy enthusiasts and educators.
Pontus Viewfinder is a photography planning app that uses AR to overlay sun and moon positions through your camera, simulates lens framing, and provides light phase information. It's designed for photographers and filmmakers to plan outdoor shots accurately.
Starpath is an iOS app that displays real-time positions of the Sun, Moon, and planets along the ecliptic. It offers multiple chart modes, time travel to explore past and future skies, and dynamic moon phase icons. Designed for astronomy enthusiasts seeking accurate, visually appealing planetary data.
Satellite Tracker 3D Sky Radar lets users view and track satellites, including the ISS and Starlink, in real time on a 3D globe. It provides personalized pass predictions, live telemetry, and stargazing scores to help users know when and where to spot satellites. Ideal for space enthusiasts and skywatchers.
Suntime – Solar Clock provides detailed information on sunrise, sunset, moon phases, weather, and tides for any location. It is ideal for outdoor enthusiasts, travelers, and anyone interested in tracking celestial and environmental data.
Master Clock is a GPS-disciplined navigation app for iPhone, offering precise timekeeping, compass, speedometer, position logging, and sun time calculations. It is designed for users needing accurate navigation and time data in the field, such as sailors or hikers.
