I think this is the only way to go if you have significant server expenses necessary to support the game. Still it sounds like Apple doesn't let you know who l

I think this is the only way to go if you have significant server expenses necessary to support the game. Still it sounds like Apple doesn't let you know who legitimately bought the app, and they also prohibit in-app purchases that don't go through their system. So I'm wondering how people actually deal with this?