Updated for 2021! In-app purchase offers additional revenue streams for developers other than the initial purchase from the App Store. This can be great for unlocking functionality, providing additional content or for in-game currency. This course covers the dance with App Store Connect, integration with StoreKit, restoration of previous purchases and receipt validation, by the end of the series you’ll have a great understanding of the concepts behind IAP.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/18770210-in-app-purchases