Duolingo
Free tierLearn a language for free — AI-powered lessons that adapt to you
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Recent changes
- Plans updated: Free tier available; paid tier called 'Super Duolingo' with a 1-week free trial mentioned. No specific pricing figures stated in sources.
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Duolingo – Technical Overview
Duolingo is a freemium, AI-personalized learning platform available on Android and iOS. Its core engine adapts lesson sequencing and content difficulty to individual learner performance using research-backed teaching methods. The platform spans multiple learning domains — including languages, chess, and math — delivered through gamified, bite-sized lesson units. A separate product, the Duolingo English Test, provides English proficiency assessment. Monetization follows a freemium model: a free tier is available to all users, with an upgraded tier called Super Duolingo offered via subscription (a 1-week free trial is available; no specific pricing figures are publicly stated in verified sources).