GPS-slezhka.ru an online service for tracking movement through gps / mobile network. With the service, you will be able to secretly / openly follow the movement of the person, identify hazardous / safe area, when visiting a man whom you will be notified at the email. This way you can keep track of their child, their employees and loved ones.
Before you start tracking you need to register on the site, and then under My devices to add a new one. Then you will receive a password and of ID, which must be set in the application settings. The app you can download and install from Google Play, it will transmit it coordinates, which you can view on this site.