Know what it takes Well, it looks like every app maker can become a millionaire, if they can sell five hundred thousand apps. We noticed a recent infographics that “explains” how to earn million dollars by selling an iPhone app. The following facts show the funniest side of truth. – An average app price in the App Store is US $2.45. – Out of it the credit card charge is US $0.37, processing fees is US $0.02 and Apple takes US …