In-App Purchases
Mar 9 2021 · Video Course (3 hrs, 26 mins) · Intermediate
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.
Version
- Swift 5.3, iOS 14, Xcode 12


Getting Started
Interested in incorporating in-app purchases into your app? This course teaches you how to do just that. Find out what’s involved and what you’ll learn.
Understand the various objects that compose the workflow for making in-app purchases.
Learn the differences between a consumable and a non-consumable, and then create one in App Store Connect.
Challenge yourself by adding more in-app purchases to App Store Connect.
Integrate StoreKit
8:44Get started adding StoreKit by building the necessary classes you’ll use to talk to it.
List Products
12:28Query StoreKit with a list of your in-app purchases and then display them to the end user.
Troubleshoot Errors
2:30Understand why things go wrong and where to troubleshoot when you don’t receive products from StoreKit.
Process Transactions
15:14Process the returned transactions from StoreKit in order to credit purchases to the end user.
Fetch Local Products
6:44Integrate a StoreKit configuration file and create products in Xcode itself.
Managing & Testing Purchases
Purchase Consumables
15:36Now that you understand non-consumables, it’s time to implement some consumables.
Unit Test Purchases
9:41Automate the testing of your purchase flow by way of the StoreKit Configuration file.
Gain an overview of receipt validation and the techniques available to you.
Decrypt an App Store receipt on your device using location receipt validation.
Decode Receipt JSON
8:03Dive into the process of both understanding receipt JSON and decoding it.
Conclusion
1:57Review the concepts covered in this part and get a sneak peak at what comes next.
Incorporating Subscriptions
Gain an understanding of the existing subscription options and how they differ.
Create an auto-renewing subscription and learn about various features of it.
Learn what you need to do to implement your subscription in your project.
Learn how to test your auto-renewing subscription in Xcode and on a device.
Display subscription content once a user has purchased a subscription.
Conclusion
2:11Congrats on finishing the course! Review everything you’ve learned, and find out where to go next.
Who is this for?
This course is for intermediate iOS developers who are comfortable with the Swift language, SwiftUI and know their way around Xcode.
Covered concepts
- Defining your own in-app purchases locally & in App Store Connect
- Preparing purchases in Xcode
- Unit testing your purchases
- Buying & restoring purchases
- Setting up subscriptions
- Creating trial periods
- Validating receipts
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