Each telephone has an operating system. A lot of persons are arguing about which one is the best. However, nothing else but apps will help in choosing the phone. For many persons this is the basis of the mobile. The first option is mobile software called Android. It leading mainly in mobile phones invented by HTC and Samsung. It is characterized by a large number of free apps. Android development was made possible primarily through phone users. They may design their own apps and share them on the network.