Summary
In this chapter, we reviewed what in-app purchases are and the four different types. We also looked at how we implemented the purchasing of in-app products in our Belt Commander game. We reviewed how to get a valid list of product IDs from the iTunes Store and how to create a UI based on that list. We also looked at how to trigger a purchase process and how to respond to a successful completion, keeping in mind how to store a record of that purchase for the user.
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