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.






8+ similar apps compared and reviewed
Whether you want more options like EZ Sextant or a completely different take on the same concept, our curated list of 8+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.






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.






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 comprehensive sailing guides for the southern Caribbean, featuring nautical charts, regulations, services, and points of interest. The app offers an interactive map with user-generated comments and corrections, all free to use. In-app purchases provide access to detailed guide book content.


This app provides tools for celestial navigation, offering computations for celestial bodies and sight reductions. It includes an offline perpetual almanac and allows for quick capture of observation data for accurate course adjustments.


This marine navigation app provides real-time AIS data for collision avoidance and position sharing. It offers over-the-horizon warnings, background operation, and a user-friendly interface for boaters.


This navigation software is designed for sailing boats, offering a free version with basic GRIB viewing and an optional full version with advanced weather routing, chart modules, and communication features. It supports various chart formats and NMEA data sources, with a simulation mode for learning.


This app acts as a digital anchor watch, monitoring your boat's position and alerting you if it drifts. It offers real-time tracking, remote control, and customization options for peace of mind while boating.


Transform your device into a powerful GPS navigation tool with detailed US NOAA nautical charts. Navigate safely even without a cell signal, track your journey, set waypoints, and create custom routes. Ideal for sailors and boaters needing reliable marine navigation.