[MattKelly]

We list the languages on the website and the app description (also rakoo pasted them in his comment).

Check out @levpopov's other comments about phone #s (https://news.ycombinator.com/item?id=20097197) and how we handle translation (https://news.ycombinator.com/item?id=20097026).

[samuraiseoul]

I see the language description on the site now but it was hard to spot until I looked really carefully. That said, I don't see a way to use this as a web app, only to download it for a mobile device. I know the phone number is for getting a download link but the thing is I do not want to download it.

[ramblerman]

Then don’t.