i don't think of eliminate as the type of in-app purchases the OP was reffering to..but i could be wrong Eliminate allows in app purchases that you can buy energy, for when it depletes (a waste of money in my mind) then there are games, like Cogs, where you buy the demo first 10 levels for 99 cents, and buy 10 more 99 cent packages or something to that extent they are additional content rather then energy or virtual money or whatnot i don't know what the most in-app purchases app would be there are a lot of free ones, that make you buy the app piece by piece, which i hate I would much rather just buy a whole game and be done with it