Android is most popular innovation of google and well known platform for mobile application development.It has simple to use capacities and features, that even a startups can find it easy without any stress of the components of advanced mobile phone.Android application development is one of the rising and growing trend in the industry of mobile.Of course there are other mobile operating system.As we know android is being operated by google since 2008.As it is an open source platform.Android operating system is the most popular OS in the world with 3.5 million of app in app store.Advantages of android: 1.Android apps are easy to use and free.2.Android phones are cheaper.3.Offers Ample Widgets.4.ROM can be increased.5.Android phones can run many applications, it means you can browse facebook while listening to the song.6.Any SMS, Email, or even the latest articles from an RSS reader , there will always be a notification on the home screen of android phone.