Compass & Altimeter

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

• Works perfectly <b>offline</b> and without network access
• <b>Geographic north</b> using magnetic declination
• <b>True altitude above mean sea level</b> (AMSL)
• <b>Sunrise</b> & <b>Sunset</b> 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 (<b>available in iPhone dial</b>)
• 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. <b>Magnetic closure cell phone cases</b> may also disrupt the accuracy of the compass.

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

Have fun !