The chess course is launching in beta testing on iOS in English, according to Monica Earle, Duolingo’s PR director. Earle estimates that in four to six weeks, more people on iOS will be able to try it ...

Its solutions include the Duolingo Language Learning App, Super Duolingo, Duolingo English Test: AI-Driven Language Assessment, Duolingo For Schools, Duolingo ABC, and Duolingo Math. It has four ...