Traccar (Server) is a free open source server that supports more than 80 different protocols and GPS tracking devices.
By default application is configured to use free Traccar service (address - demo.traccar.org, port - 5055).
Traccar Client is an app that allows you to use your mobile device as a GPS tracker.
You can use this application with your own hosted instance of Traccar.
It reports location to your own or hosted server with selected time intervals.
NOTE: Continued use of GPS running in the background can dramatically decrease battery life.
To see your device on map register on and add your device with identifier.