But how would you know to do this if they're gagged developers from informing users about Apple's cut, cheaper prices elsewhere, or from giving them a link.

I'm sure people will pay a bit more to use Apple pay and not get kicked out to a browser and possibly fiddle with re-logging in and re-typing in their payment info to a sketchy site.

Very few will pay 30% more though, because even the people that love Apple pay will be forced to acknowledge it's an obvious ripoff, in no way commensurate to the value provided.

I know because I compare the price on the vendors website versus the app. And I know that because I am up and up on how these things work, and I do not expect everyone else to be.

However, I was just making a factual statement that anyone can pay using their browser on iPhone or iPad on the vendor’s website, just the same as they can using their laptop.