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Yes, the Apple-Google duopoly poses a much bigger problem for freedoms than Twitter (I covered that in detail last summer Apple is the more dangerous of the two because it can completely restrict which apps you use, while on Android you can install self-hosted apps as APKs. That's why I've been urging users to switch from iOS to Android - that's the least they can do to retain access to a free flow of information.

As for iOS, we are working on a feature-rich web app which will run in Safari almost as smoothly as the native app. Still not the same thing, but would work in extreme cases if for any reasons .

Having said that, we don't see why Apple or Google can be unhappy with, so this discussion is purely hypothetical.