but then apple would moan it's a feature that should be available in the app and you're back to square 1 Well, Apple's explicitly disallowed this in their rule

but then apple would moan it's a feature that should be available in the app and you're back to square 1 Well, Apple's explicitly disallowed this in their rules. You have to provide in-app subscription, and you can't send users to the website to sign up regardless.