30%. Either way Apple wins.

"would have to be made through the app store platform" not necessarily. Netflix operates through the app store and doesn't sell subscriptions on the App Store as a big FU to the 30% gouge...

Could Facebook make it happen and profitable in a way to get around Apples rules? I think so... I think Apple would change the rules shortly after though...

Yes, that's why I mentioned Facebook forcing users to subscribe through a web browser as that would be out of Apple's control.

AFAIK the rule is that users can subscribe to a service/product outside of an app and use their account's status on the app, but if the user wants to subscribe from within the app they need to go through the App Store subscription service.

I wonder if Apple's motives were mainly this all along. It's a brilliantly capitalistic move if it was. Either way, props to Apple for fighting against zuck. To me, it seems like he's taken way too many liberties with people's data all under the guise of disruption and making the world a better place.