All of my “business” for each of those products is within the app. There has never been a ban about requiring subscriptions outside of the app, you can’t have a link to an outside website that is true.
The only reason they get away with that is because you're willing to sign up and pay at an external website that you can find on your own. Most apps would lose most of their customers at the "now go find our website and how to pay without any help" step.
> So in other words, Apple is providing a valuable service and the 30% is a customer acquisition cost?
According to what Rebelgecko said, it sounds like the only reason Apple's service has any value at all is that they artificially restrict any possible competing payment methods on their devices.
