It's also larger than that, Apple's involvement isn't just a cash grap for a 30% slice.
It's because Apple want both visibility, and the power to refund customers who make legitimate complaints. Currently anything purchased inside an app can be refunded by Apple: music, videos, software, anything. The user's account password is needed whenever they wish to buy something.
The moment that is externalised Apple have no visibility or control over the payments, how they are made and what frequency they are occurring. They could inadvertently be publishing an app that tricks users into donating money, or money that goes to inappropriate use.
By requiring the user to switch to the browser where they'll need to either enter their CC details or account credentials is a nice way for both Apple to distance itself, and for consumers to understand that it's external to the app store ecosystem.
It's because Apple want both visibility, and the power to refund customers who make legitimate complaints. Currently anything purchased inside an app can be refunded by Apple: music, videos, software, anything. The user's account password is needed whenever they wish to buy something.
The moment that is externalised Apple have no visibility or control over the payments, how they are made and what frequency they are occurring. They could inadvertently be publishing an app that tricks users into donating money, or money that goes to inappropriate use.
By requiring the user to switch to the browser where they'll need to either enter their CC details or account credentials is a nice way for both Apple to distance itself, and for consumers to understand that it's external to the app store ecosystem.