Yes and no. For one, Readability isn't a monopoly. Second, Readability isn't prohibiting (so far as I'm aware) authors from selling via other channels at other

Yes and no. For one, Readability isn't a monopoly. Second, Readability isn't prohibiting (so far as I'm aware) authors from selling via other channels at other prices. While Apple and Readability are both offering a service to their various audiences, Apple goes further by demanding that developers on iOS use their IAP API and that they match prices offered via cheaper methods.