Use to be a 5 stars now it's 1. The last update disabled the user discussions about sentences to be translated. I am working on my B2 Goethe certification in German. Although material is regularly updated, it is clearly under vetted. Specifically the accepted answers for the new material shows a lack of flexibility in sentence structure, has problems with word translations and occasional grammar errors. Don't waste you time with this app. I will NOT renew my annual subscription!