OK so becoming a millionaire from making apps isn't easy at all. Before you can even start making money you've got to have a bloody good app, one which is addictive and can go viral. You'll also need to sell 581,395 apps at an average price of $2.45 to become a millionaire and that's for yourself. It'll need to be double that if there are 2 people in your team. So basically becoming a millionaire in the app store is the same as winning the lottery, where the odds are ridiculously out of your favour.