Apple is not just charging for payment processing, you get access to the App Store marketplace with more than billion devices. With Stripe you only get payment processing.
For the other fees discussed in this article, you do get additional capabilities. Distribution is not one of them, but it's not an apples to apples comparison.
For the other fees discussed in this article, you do get additional capabilities. Distribution is not one of them, but it's not an apples to apples comparison.