Duolingo

Duolingo.com is the flagship digital property of Duolingo, the world’s most widely used language learning service. After the domain was registered in 2010, the platform launched publicly in 2011, offering free, gamified language instruction to users across mobile and desktop devices, and today boasts over 500 million registered users globally. The core of Duolingo’s offering is a free tier that teaches reading, writing, listening, and speaking skills through short, interactive lessons that reward progress with in-game points, daily streaks, and achievements, designed to encourage consistent daily practice that fits around users’ schedules. The platform generates revenue through Duolingo Plus, a paid subscription that removes ads, unlocks unlimited offline access, and offers additional features like personalized mistake review. It also earns revenue through the Duolingo English Test, an affordable online proficiency exam accepted by thousands of universities and immigration institutions worldwide, plus educational products for K-12 schools and enterprise clients. Ranked #474 globally in website traffic, placing it in the top 0.1% of all websites worldwide, duolingo.com serves learners of all ages: from children learning a second language to adult professionals building new skills for work, travel, or personal growth. Unlike traditional expensive language courses or in-person instruction, Duolingo’s free core model has made language learning accessible to underserved communities across the globe, helping millions of people access new educational and professional opportunities without upfront cost. As a publicly traded edtech leader headquartered in Pittsburgh, Pennsylvania, Duolingo continues to expand its course catalog, regularly adding less commonly taught languages and new features to serve its global user base.