GPSTracking

GPS Tracking is gathering you location data and send it via webservice.
It is keep tracking your mobile location.
You can use this application to track or car.
the track is saved in a sql database and archived. End use can use another win app to watch (on time) the mobile or revise an archived path.
The applcition can work offline and when it go connected it will send all the offline saved data.

I use this article which I wrote it before
http://www.codeproject.com/Articles/267023/Send-and-receive-json-between-android-and-php