This is how Apple has implemented its “StoreKit external purchase link” system: https://developer.apple.com/support/storekit-external-entitlement-us https://dev

This is how Apple has implemented its “StoreKit external purchase link” system: https://developer.apple.com/support/storekit-external-entitlement-us https://developer.apple.com/support/storekit-external-entitl... It’s important to note this is US only, not UK. It appears to apply to net new subscriptions being solicited through iOS apps which also have in-app subscription enabled.