Free mobile tracking software helps to track the location of a target person using the GPS location of mobile. It will notify the user about the target’s location through SMS or email. It will also alert the user when the target person remove or change the SIM card. If GPS doesn’t works, it calculates approximate location by absence of signal from mobile relay. To know more kindly visit http://www.spy3k.fr/Logiciel_gratuit_de_suivi_de_mobile.html