I was in the need of a translating app, so I build this one:
It's build in C3, exported to html5 and hosted on a https location.
It works on mobile browsers too.
The app itself is rather plain with no guidance, it's because I use it personally atm for tests.
The 2 dropdown lists lets you select an input language (on the left) and an output language (on the right) The results are spoken.
When the app/page has loaded just hit the little green button in your bottom left to start the mic.