Feditext users: it's possible to use iOS client-side translation for many languages by selecting post text and then "Translate" from the text services menu. see the attached video. (this also works in Metatext, but if you're still using that, upgrade!)
we already have an open issue to improve translation UX to catch up with other clients, including support for server-side translation where available https://github.com/feditext/feditext/issues/14











