App Store policy (written or otherwise? It's hard to say.) only levies the 30% on digital goods delivered in the app. Uber, for example, doesn't pay 30% of ride

App Store policy (written or otherwise? It's hard to say.) only levies the 30% on digital goods delivered in the app. Uber, for example, doesn't pay 30% of rider fees to Apple. Patreon is in this weird gray area because you kinda-sorta are getting digital goods delivered via the Patreon app, depending on how you look at it. And obviously if there's a way that Apple can squint and say it falls under their purview, they will...