From a purely practical standpoint, it&#x27;s easier to charge for the app and let Apple do the billing and payment processing, than to set up a system to handle recurring billing (and then you need to deal with cancelations, chargebacks, etc.). I&#x27;ve gone through this thought process for a few side projects, and unless I anticipate really large MRR, it&#x27;s hard to convince myself to go through the hassle of setting up subscriptions.