We're developing an app for iOS devices. It has a subscription option if the user wants to upgrade from the free trial.
Our app is rejected as we had an option to pay with PayPal along with In-App Purchase. They reverted with the insights and resolution steps.
We noticed that your app or its metadata provides access to external mechanisms for purchases or subscriptions to be used in the app, which does not comply with the App Store Review Guidelines.
To resolve this issue, please remove the account registration links and any other fully qualified links to your site that could indirectly provide access to these mechanisms, such as links to web pages for support, FAQs, product or program details, etc.
There are several doubts we have.
We are using the same API for iOS and Android app, hence, do we need to remove PayPal related information from the API's request-response for iOS?
Is it acceptable if we have the option to subscribe through a web app?