Accept in-app purchases on iOS
Let customers buy digital goods or subscriptions by redirecting from your app to the browser.
For digital products, content, and subscriptions sold in the United States or European Economic Area (EEA), your iOS app can accept Apple Pay by redirecting to an external payment page. The following guides describe how to implement the available payment UIs.
Accept payments
Recommended

Use a prebuilt payment page
Use Payment Links

Use your own custom flow
Manage subscriptions

Use a customer portal