> "Apps may only use auto-renewing subscriptions for periodicals (newspapers, magazines), business Apps (enterprise, productivity, professional creative, cloud storage), and media Apps (video, audio, voice), or the App will be rejected"

I assumed that's why so many iOS apps use non-recurring billing instead. You can still sell access to your service, but users have to manually purchase at each subscription interval.

[0] - https://developer.apple.com/app-store/review/guidelines/#pur...