App Store apps (mostly) monetize via in app purchases, or through displaying ads to a large free user audience. All the top grossing apps are free, with monetiz

App Store apps (mostly) monetize via in app purchases, or through displaying ads to a large free user audience. All the top grossing apps are free, with monetization from in app purchases. Take a look at the grossing charts: https://sensortower.com/ios/rankings/top/iphone/us/all-categories https://sensortower.com/ios/rankings/top/iphone/us/all-categ... , only Minecraft breaks top 25 as a paid app. This means making a certain kind of consumer focused app with large numbers and ability to monetize a fraction of the users well.