This is a App specical design for Nextech GPS tracking service, it only can be worked together with the LA-xxxx series gps tracker, Login with last 7 digits of the tracker as the account name or given account name, after login the current location can be displayed on the map, also the history tracking can be played back, power down & geo-fence break alarm information also can be checked, the tracker using & installation please refer the tracker manual. this app is free to download, but will require a data plan or a connection to wifi on your mobile phone to visit.