
This paper reviews a number of applications designed for location tracking on mobile phones and also how this location tracking can help in a variety of ways. The Location tracking is one of the location based services. Location based services are set of services provided to a user based on his location. A location of a mobile can be found out either with the help of mobile network or by Global Positioning System (GPS). Most of the mobile phones these days are embedded with the hardware required to use this GPS technology and are also easily available. Android is a new generation of smart mobile phone platform launched by Google. Android supports GPS, Video Camera, compass, and 3d-accelerometer and provides rich APIs for map and location functions. Users can flexibly access, control and process the free Google map and implement location based mobile service in his mobile systems at low cost.