I agree on the "can't install apps from outside the app store". That's probably the best way to fix this. As long as Apple controls the app store, this will al

I agree on the "can't install apps from outside the app store". That's probably the best way to fix this. As long as Apple controls the app store, this will always be an issue, and it doesn't matter precisely what the % cut is. The reality is, very few people would argue that Apple "deserves" some cut of app sales for developers who choose to use the Apple App store. But it's impossible to disentangle this issue from in-app payments. If in-app payments are royalty free, then every app will become "free" with an in-app purchase to make it do anything at all, to game the system. But if Apple gets a cut of in-app purchases, there will always be this grey area of "what if I purchase a subscription using another website" or "what if I use a free app to access my paid Netflix account", and so on.