The apps that make alot are few and far between. Comparing to flappy bird is like comparing your high school football career to being an NFL player, odds are probably far less then 1%

itunes pay you for each download of your game, free or not. But i agree with anonymous ^^

Thanks for helping

I was wondering how successful does an app have to be to make a good income from it

Apparently flappy bird guy gets 50,000 dollars a day!

And small games that aren't MASSIVE like angry birds or temple run, will also make lots.

Even app like emoji and service apps

Does it have to be a paid for app to gain an income? Or can people download it for free and I could still get an income for it?

How popular does it have to be? If it was liked but not super amazing would I still gain profit?