Global Positioning System (GPS) is a navigation system that determines a device's current location through satellites.
International Data Corporation reported total smart phone sales of 300 million units in second quarter of 2014 alone across the globe.
According to eMarketer, we expect 2 billion people to own and use smartphones by the end of 2016
and over half of mobile phone users globally will have smartphones in 2018.
Combined with the fast growing popularity of the smart phone and its built-in GPS through
mobile apps, the location tracking functionality of modern mobile devices provides unprecedented opportunity to individual’s mobility in daily life.
Current position locating in map, road navigation, vehicle tracking etc.are the most uses
application using GPS system provided by Google Map and other free GPS service.
A free Real Estate Mobile App for smart phone and tablet by Realtor.com®, as an example, provides the real estate listings with simplified real estate search engine and navigation to the location selected.