Telegram gives its users more freedom of speech than any other popular mobile application. Unlike other apps, Telegram can't be pressured by shareholders, cloud providers or advertisers into unjustified censorship.  Telegram doesn't exist in isolation, however. It depends on other companies to function, from banks and telecoms to Apple and Google. The latter are particularly important, because Telegram – like all mobile apps – has to follow rules set by Apple and Google in order to remain available to users…