There's a massive range of IAPs though. Some games have stickers or hats or other little bonuses that don't impact the playability of the game. Some have a pu

There's a massive range of IAPs though. Some games have stickers or hats or other little bonuses that don't impact the playability of the game. Some have a purchase to remove ads or unlock extra levels. It's not obvious if IAPs are part of the gameplay or not just because a game says on the tin that it has in app purchases.