You can access the French Course Flash Cards on TinyCards. It's free!

Oh thank you so much for responding.

Android app by lekz to review 99 DuoLingo words: https://www.duolingo.com/comment/19154823/I-ve-made-an-Android-app-to-review-learned-words-same-as-in-Review-Flashcards

I suggest using lingvist.com

And Anki is really good if you want to take the time to make your own flash cards.