Best Orastra alternatives: apps like Orastra

CamSextant

by Omar reis

Free

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.

Navigation Almanac

Celestial navigation offline

Free

This app provides a comprehensive offline celestial navigation toolkit. It calculates celestial body positions, sunrise/set times, and sky charts. It also offers tools for compass error correction and position fixing, all without requiring an internet connection.

Binnacle: Nautical Calculator

Navigate like a pro

Free

This navigation app provides tools for maritime professionals and sailing enthusiasts. It offers features like true wind calculation, celestial navigation, ETA estimation, logbook management, and port search. Stay informed with real-time NavArea warnings for safer voyages.

Nautical Calculator Preview

Nautical Calculator Preview

Free

This app provides comprehensive tools for marine navigation, including real-time ship movement, route planning, and advanced sailing calculations. It also offers features for collision avoidance, maneuvering, and learning maritime regulations and signaling.

Scenic Map

3D topo maps of the world

Free

Explore the world with detailed 3D topographic maps, accessible even offline. Stream and cache global maps for use without cell service. Features include satellite overlays, customizable map styles, and GPS tracking for navigation and route replay.

Celestial Nav

Modern Celestial Navigation

Free

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.