Duolingo Test Center

Duolingo Test Center is an app that to take a language level test online using the webcam and microphone on your Android, with a human instructor supervising the process.

This test is totally free during the beta phase but will cost money when Duolingo Test Center reaches version 1.0. That said, it will still be much more affordable than any other course where you have to show up to class in person.

Duolingo Test Center is a great complement for frequent Duolingo users who want to test their knowledge and get a certificate for it. It's not an official certification, but still, it's Duolingo!