Android studio is a perfectly developed application which you can use on smartphones and tablets. With being created in 2008 it is firsty used at HTC Dream model smartphone with android 1.0. Android is developed by Google's Engineers. And it is getting developed day by day.
Firstly android application creators were using Eclipse Ide for application development. Eclipse is a java based application. With using android plugin, android application creators could develop android applications. But in 2013 Google introduced Android Studio and started to let programmers to use it. Android Studio has let programmers to create applications so much easily comparing with Eclipse. SDK(Software Development Kit) Tools are used kits for developing Android Applications.