At CocoaConf Dallas this weekend I attended a great presentation by Manton Reece on In-App purchases and subscriptions. In it, he cited a few key points: Ideally you would load the list of product IDs from a cloud service rather than baking them into your application You should verify your receipts on the server and not trust the client (it's extremely easy to cheat if you do). Ideally, the enforcement of your subscription should also occur on the...