Apple: Apps should not require users to opt into tracking to access content
Full text of the clause:<p>> 3.2.2 Unacceptable<p>> (vi) Apps should allow a user to get what they’ve paid for without performing additional tasks, such as posting on social media, uploading contacts, checking in to the app a certain number of times, etc. Apps should not require users to rate the app, review the app, watch videos, download other apps, tap on advertisements, enable tracking, or take other similar actions in order to access functionality, content, use the app, or receive monetary or other compensation, including but not limited to gift cards and codes.