As an iOS developer, you have probably heard of Apple Pay. Apple Pay lets iPhone users pay for purchases by using their iPhones. There are some great benefits in store for a developer to integrate Apple Pay in his or her app. For example, your customers don’t need to enter a credit card number, expiration date, and CVC numbers; or in some cases, shipping address and billing address before making a purchase. All of this means a faster and more convenient checkout process. Another benefit is that it’s supposed to be a much secure way to handling credit card charges. In this chapter, I will show how to implement the feature of Pay with Apple Pay and Stripe.