21+ similar apps compared and reviewed
Whether you want more options like GPS Anti Spoof Pro or a completely different take on the same concept, our curated list of 21+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
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.
This app provides advanced celestial navigation computations for iPhone and iPod touch. It offers mathematical and graphic solutions for position fixes, great circle sailing, and more, including lunar distance methods and a sight planner for accurate results.
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.
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.
Track real-time altitude changes with interactive graphs and Live Activities. Offers sea-level or relative altitude modes, with optional CSV export/import for detailed data analysis. Includes a standalone Watch app and real-time climb/descent statistics.
This app provides precise altitude readings using your Apple Watch's barometric pressure sensor. It offers multiple calibration methods, including GPS, manual entry, and airport data, ensuring accurate measurements for outdoor activities. The interface is designed for easy readability with customizable color schemes.
This app uses GPS and device sensors to provide detailed location data, including altitude, atmospheric pressure, and water boiling point. It allows users to capture and stamp photos with location details and offers offline functionality. An optional purchase removes ads and supports development.
Explore power-line maps and estimate potential electromagnetic field (EMF) exposure from your home. Measure EMF radiation directly on the map without needing a physical device. Share detailed reports and receive alerts for high EMF readings.
This app measures and computes altitude using your device's barometric pressure sensor and GPS. It offers multiple calibration methods, including GPS, manual input, and airport METAR data, for accurate readings. The interface is simple with large, easy-to-read numbers and offers distinct day and night display modes.
