I purchased Self Pro. I submitted it for review and got the following response:
Guideline 5.2.1 - Legal - Intellectual Property
We noticed that your app was created from an app generation service or a commercialized template, but does not appear to be directly submitted by the owner or provider of the business, brand, or service. In order to protect Apple users from dealing with unauthorized parties, we require documentation of your relationship with the provider of the goods or services in your app.
What should I do?