I've already finished the course (twice), and learned these words (diagramme, nuances, sbutilites, revelent), but they are still grey for some reason.
Sound doesn’t work on iOS iPhone app
Is there a way to see past progress and statistics?
Problem with Speech Input via Headphone
Why was card sharing removed on iOS?
German course bug
Which languages are coming soon?
How does this website work? Is it just a dictionary?