I'm using a donation button which collect funds outside of the app (my app is free and it is already in the store), new version of the application was rejacted with with this comment:
3.1.1 Business: Payments - In-App Purchase
Guideline 3.1.1 - Business
We noticed that your app enables the purchase of content, services, or functionality in the app by means other than the in-app purchase API, which is not appropriate for the App Store.
- Donation
Next Steps
While the payment system that you have included may conduct the transaction outside of the app, if the purchasable content, functionality, or services are intended to be used in the app, they must be purchased through in-app purchase, within the app - unless it is of the type referenced in guideline 3.1.3 of the App Store Review Guidelines.
Request a phone call from App Review
At your request, we can arrange for an Apple Representative to call you within the next three business days to discuss your App Review issue.
To request a call and ensure we have accurate contact information, reply directly to this message with a contact name and direct phone number to reach you.
In-App Purchase
It may be appropriate to revise your app to use the in-app purchase API to provide content purchasing functionality.
In-app purchase provides several benefits, including:
- The flexibility to support a variety of business models.
- Impacting your app ranking by consolidating your sales to one app rather than distributing them across multiple apps.
- An effective marketing vehicle to drive additional sales of new content.
For information on in-app purchase, please refer to the following documentation:
In-App Purchase for Developers
In-App Purchase Programming Guide
For step-by-step instructions on in-app purchase creation within iTunes Connect, refer to In-App Purchase for Developers.
