Founded in 2011 and headquartered in Pittsburgh, Pennsylvania, Duolingo, Inc. develops and operates a widely used educational application. The company's core product is the Duolingo app, which uses gamified, interactive lessons to teach languages, math, and music to millions of users. Duolingo operates on a freemium business model, generating revenue through its premium subscription tiers (such as Super Duolingo and Duolingo Max), in-app advertising, and in-app purchases. Beyond consumer education, the company offers the Duolingo English Test, an AI-driven digital proficiency exam used for university admissions and professional credentialing. The platform leverages user data and artificial intelligence to personalize learning experiences and optimize course content across its global user base.
