MIT APP INVENTOR
What is App Inventor?
App-Inventor is graphical interface software which allows the users to make Android apps. It creates ready apk files directly (not Java code).It allows users to drag and drop objects to create an android application which can run on Android devices.
AppInventor is an open source web application provided by Google but and now it is maintained by the Massachusetts Institute of Technology (MIT).
In December 2013 the new version of App-Inventor 2 was released out, which now runs completely in the browser and the previous version is now called as AppInventor Classic which has been shut down in July 2015.