At the moment, Twine only supports English.
Longterm, we plan to upgrade Twine so we can connect teams all over the world, no matter if they say "Hello", "Bonjour", "Kon'nichiwa" or "Zdravstvuyte". For now though, the interface only supports English.
If you're a very big company and you're interested in working with us to support more languages, get in touch and we'll talk though the possibilities.
Gracias por tu paciencia!