> Does Apple allow developers to just charge 30% more when users sign up through iOS, and just note in the app that access to the service though iOS costs more?
You are allowed to do the former but not the latter.
I think that’s where I have a problem with the policy.
I’d specify though, that it makes sense Apple would not allow developers to make the signup via web a work around, just to avoid paying Apple and still use my service through iOS.
However, if I block access to my service from native iOS apps until a user agrees to pay the 30% extra, that feels fair and still follows the spirit of the rules IMO.
Not letting me tell users what they are paying for, or why they can’t access my service on iOS until they cough up an extra 30%, that’s overreach.
You are allowed to do the former but not the latter.