idea

I have a great idea of an app, which will has great income

 

can you advise me 

I have to, please make me good app and I give big THANKS!

The MITtutorials    http://appinventor.mit.edu/explore/ai2/tutorials.html   and the

AI2 free online eBook   http://appinventor.mit.edu/explore/ai2/tutorials.html   ... the links are at the bottom of the Web page 

tell you how to program and make a lot or a very little from your idea, depending on how well you learn to code.

"...make a lot or a very little from your idea, depending on how well you learn to code."

Depending on a host of other things too.  Marketing, Graphics, Timing, Usability, UI design. etc,

Best of luck (yes, even luck will determine the income from an app).