Hi, I was just trying to find out what is popular on app store and there is really no such way, you cannot chek how many times the app was downloaded I wanted to know how much money you can earn there if you are successful… I think it is not possible to do a research on App Store :/
Well, I know for example ‘Doodle Jump’. The makers earned around 2 million dollars just by selling that app.
Around 2,1 million dollars to be precise. Here’s an (Dutch) article about it: http://www.iphoneclub.nl/63635/doodle-jump-meer-dan-drie-miljoen-keer-verkocht/