AGPS-TrackerOm is an interesting and quite a robust Android application. It's main function is to follow preloaded tracks and record your tracks, and tries to do so reliably - ensuring that the GPS data is recorded at all times, even when the phone goes into stand-by mode. This means you won't get surprise straight lines in your GPX tracks. It can also provide enhanced accuracy of your current elevation, by using altitudes from NASA-generated Digital Elevation Models (DEMs).
AGPS-TrackerOm (previously called A-GPS Tracker++), differs from the lighter version, A-GPS Tracker in the following:
- AGPS-TrackerOm uses offline maps maintained by OpenStreetMap, which you need to preload. The "lighter" A-GPS Tracker uses Google maps which are not available offline.
- You can download Digital Elevation Models (DEM) which allow the app to display altitude contour lines and provide DEM altitude along with GPS altitude, the former being more accurate
