Speedometer and GPS Tracker, exports track data in gpx and kmz format, can synchronize data with your own OpenGTS Server.

This is not only a speedometer: this a complete trip computer for car and boats.

features:
- modifiable speed units ( m/s, mph, knots )
- background tracking (reports speed on app icon)
- modifiable recorded tracking (commands available to insert and modify routes and waypoints)
- export data in gpx and kmz
- can synchronize local tracking data with a configurable OpenGTS server ( fleet tracking )
- OpenStreetMap and OpenSeaMap available
- NMEA protocol supported
- additional skins and functionality available via in-app purchase
- idle mode ( after 30 seconds background is hidden and only speedometer is visible over a dark background )
- interactive speed chart
- configurable speed limit (red zone in speedometer) with alarm sound, played in background too when tracking is active

This app uses gps in background when tracking is active.
Continued use of GPS running in the background can dramatically decrease battery life.