I meant enforceable legally depending on the jurisdiction not practically. The comparison is not the same at all, No merchant gateway is blocking cash transact

I meant enforceable legally depending on the jurisdiction not practically. The comparison is not the same at all, No merchant gateway is blocking cash transactions just forbid different pricing. This is miles away from what Apple can do. A payment g/w can only at best stop payment processing as it happened wikileaks or more recently with SciHub. Apple can kick you off the market effectively by blocking access to app store . Either the app store should be treated like a utility given its monopolistic nature or not be allowed to push their second service (payment g/w, lots of competition) because they have control over first one App store (no competition), in another era this would be classic anti-trust .