Apple Pay is already available as an API, you can even use it on the web. Indeed would be nice to centralize all subscriptions, we have yet to see how they wou

Apple Pay is already available as an API, you can even use it on the web. Indeed would be nice to centralize all subscriptions, we have yet to see how they would interface with 3rd party payment options. But on the whole this should be a win - if anything, those competitors will have a strong incentive to improve their UX.