Duolingo is an educational technology platform that offers language learning through mobile and web apps. The service provides courses in 42 languages ranging from widely spoken languages like English, French, and Spanish to less common languages such as Welsh, Irish, Navajo, and constructed languages like Klingon. Beyond languages, Duolingo offers courses in music, math, and chess. The platform uses gamification with points, rewards, and spaced repetition to encourage consistent daily practice through short lessons. A freemium model provides free access with advertising, while paid subscriptions remove ads and unlock additional features. The platform also offers the Duolingo English Test, an online English proficiency assessment, and Duolingo ABC, a literacy app for children.
Effective for building reading and listening proficiency comparable to university coursework when used as a primary learning method
Well-suited for vocabulary acquisition, particularly for beginners
Accessible freemium model allows language learning without upfront cost
Available in 188 countries across iOS and Android
Adaptable learning path that personalizes lesson difficulty based on user performance
Limited grammar instruction; learners using Duolingo English showed significantly less grammar improvement than other proficiency measures
Requires consistent daily engagement to maintain streaks and build lasting habits
Max subscription with AI features (video calls, roleplay) available only for select languages
No demos and screenshots available.
Pricing yet to be updated!