Free language-learning platform Duolingo is helping language learners practice their new skills with the use of chatbots. The service gets three language “tutors” in the iOS app that you can text back and forth for practice. There’s Renèe the Driver, Chef Roberto, and Officer Ada to help you practice French, Spanish, and German. Duolingo promises to add more languages in the future but that’ll depend on demand. And since these chatbots are powered by artificial intelligence, the more you use them, the smarter they get. Chatbots have been gaining popularity in the recent months but are far from being polished products yet. It’s good to see them being used in more and more services to hopefully stabilize and improve them.