How to create an app?

We already know how to use the lot of applications from the play store. But nobody knows about how to create an app.  Use the following link below.

http://www.appsgeyser.com/mobile/

   Create an app ,  Play with apps.

Code blocks software

Code Blocks Software
          It is the open source software.  It helps to do the c, c++ programming, Matlab project  and also more type of projects easily.
Download this app using this website:

http://codeblocks.software.informer.com/13.12/

         Use this app , Play with programs.