AWS bills their services on usage. If AWS ever offered billing as a service (ala Stripe) they would most definitely charge you a % of the transaction amount, al

AWS bills their services on usage. If AWS ever offered billing as a service (ala Stripe) they would most definitely charge you a % of the transaction amount, along with a flat rate per transaction. Apple doesn't charge developers 30% of revenue; they charge 30% of revenue made from purchasing from the app store, and in-app purchases.