DS Altimeter is an elevation meter, elevation logger, and altitude mapper. In addition to showing and optionally tracking your altitude, the app allows you to search the altitude for other locations as well. You can select from the best sources of elevation data, including: 1. Location based altitude from NASA's Shuttle Radar Topography Mission. 2. Satellite based altitude (GPS altitude) corrected to height above mean sea level (AMSL). 3. Get actual land survey altitude values f