Apps Like Celestial Navigator for iPhone and iPad
Calculate positions, track objects, plot lines
Navigation provides perpetual almanac and star finder chart with animation. Calculates lines of position, object data, and meridian passage. Supports running fixes and astronomical position calculations with multiple star observations.
Celestial Navigator screenshots
Ranked alternatives
Showing 261–280 of 1,000 ranked alternatives.


i-Boating: Canada & USA - Marine / Nautical Navigation Charts for fishing & sailing
Bist LLC
Navigate with voice prompts and chart support
Access vector and raster for . Create or import GPX/KML routes. Use voice prompts for route guidance. View tide and current predictions. Rotate with text remaining upright. Supports chart course orientation.



Speedometer Speed MPH Tracker
Rihab Mehboob
Track , record trips, view stats
View data with a display and HUD options. Track trips, record , distance, and duration. Monitor average , top , altitude, and switch between mph and km/h.

Baltic Deco Planner
Eskil Olsen
Plan dives, track gas use, log decompression
Plan and track technical dives with support for open circuit and closed circuit rebreathers. Calculate gas consumption, OTUs, and CNS. Adjust ascent rates, stop intervals, and RMV/MOR per dive. Include altitude, nitrox, and trimix configurations.

Altimeter - altitude and more
22of8 GmbH
Track and save route points
Measure current and track elevation changes. Save named locations with icons for easy navigation. Syncs across iPhone, iPad, and Apple Watch. No ads and free to use.

My Altimeter GPS Altitude Map
Savelii Stepura
Locate position, view , track pressure
Displays latitude, longitude, and using GPS. Shows atmospheric pressure and boiling point of water at current location. Provides elevation data above sea level. Offers ad-free experience via in- purchase. No functional limitations.


GeoTracker Pro
Daniel Medeiros
Track location and weather data
Tracks location, speed, altitude, heading, acceleration, g-force, and atmospheric pressure. Displays and records current weather. Plays back tracks at multiple speeds. Provides suggested routes for reference. Allows pausing and resuming tracking.

Density Altitude & Air Density
Ingenieria del Software ISEnet S.L.
Calculate air and altitude settings
Calculate air , altitude, and other aviation-related metrics using temperature, altitude, humidity, and atmospheric pressure. Input data can be sourced from GPS, weather stations, or entered manually.

LocaToWeb Realtime GPS tracker
Jarle Mjaasund
Track routes, share locations, send messages
Track location in real-time with GPS. Record routes and share positions with others. Take photos and send messages during activities. View duration, distance, speed, and altitude data. Allow loved ones to monitor your location for safety.


Altitude App
Piet Jonas
Measure with GPS or ASTER data
Provides readings using either device GPS or the ASTER digital elevation model. Displays accurate elevation data with a horizontal accuracy of 30 meters. Functions on devices without a GPS sensor.





Nav Trainer Pro
FLEMINGER MEDIA LLC
Practice IFR navigation with VOR simulations
Practice IFR flight training with simulations of VOR, HSI, RMI, ADF, DME, and ILS navigation. Track instrument readings, adjust settings, and test navigation skills. Save progress and review performance metrics.

Skippo Sweden
Skippo AB
Plan routes, track progress, save favorites
Plan and follow boating routes with digital nautical charts and autorouting. View GPS position, speed, and AIS data. Switch to night mode and access aerial photos. Save favorite locations and use offline maps for navigation.
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