Compass & Altimeter

In-app purchases
4,5
116K reviews
5M+
Downloads
Content rating
Everyone
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About this app

A simple and easy to use Compass to retrieve useful information about your current position such as true Geographic north and true altitude above sea level.

• Works perfectly offline and without network access
Geographic north using magnetic declination
True altitude above mean sea level (AMSL)
Sunrise & Sunset times
• Azimut angles in deg, grad, mrad, gon
• Various dials and color themes (including high contrast)
• Angle measurement (with dials including measuring capabilities)
• Bubble Level functionnality (available in iPhone dial)
• Use EGM96 as the geoid reference for computing altitude
• Latitude & Longitude in MGRS, UTM coordinate formats
• Latitude & Longitude in DD, DMM or DMS format
• British National Grid (OSGB86) coordinate system
• SwissGrid (CH1903 / LV95 / MN95)
• Magnetic field strength to detect potential perturbations
• Sensor accuracy
• Address of your current location (requires data connectivity)

Compass better works outside where magnetic perturbations are low. Magnetic closure cell phone cases may also disrupt the accuracy of the compass.

EGM96 (Earth Gravitational Model) is used as the geoid reference to compute true altitude above sea level from data collected by the GPS sensor. UTM (Universal Transverse Mercator) is a system for assigning coordinates to locations on the surface of the Earth.

Have fun !
Updated on
08 Nov 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App info and performance and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4,5
115K reviews
Steve Wylie
04 November 2024
Decent app for the compass functionality. I wanted compass with a real-time altimeter and unless I just can't find it, I see no way to show the real-time altitude. You can set it up to send you notifications of altitude changes, but I do not see a way to show real-time altitude
5 people found this review helpful
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Kenneth Rieske
25 August 2024
This app has been pulling my exact location every 3 minutes since I've downloaded it, even when it's closed. Used this app for a week while hiking in the mountains and it worked great enough for that. However, I forgot to uninstall when I got back and this app not only constantly polls for my exact location every 3 minutes, but has also managed to use 1gb of mobile data in the process. Suspicious behavior from an app I haven't opened in weeks. Probably selling my location data. Uninstalled
42 people found this review helpful
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浦原喜助
13 September 2024
Uninstalled after spending the time to make and choices then being told I have to have them on or pay to remove them. Should have said that at the outset. Also should have a reject all not just accept all option. I won't be checked to see if I'm too lazy at the end and go with accepting it after spending time to opt out. I went with the app "compass" by simplywerx in the end. Bye!
20 people found this review helpful
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