Many of my students use apps for reviewing vocabulary. They asked me how Duolingo is, and I think it's important to understand the differences between native speakers and Duolingo sentences. I made a short article for my students, I hope it can help some of you as well! http://www.clairvoyelle.com/en/french-duolingo-review/ If you have any questions, you can send me a message~ 😊 Bonne journée !