Duolingo
Last updated: November 22, 2025
Founders: Severin Hacker, Luis von Ahn
Country: USA | Funding: $183.3M (+)
Website: https://www.duolingo.com/
Duolingo is an online language learning platform offering over 40 different languages. It's available via suitable mobile app, allowing you to study whenever you want, without having to attend classes. Learning is structured as a series of short lessons with game-like elements (such as points, levels and "streaks") and an adaptive algorithm. The learning plan is suitable for both children and adults: you progress through levels of increasing difficulty and complete exercises that expand your vocabulary and develop your reading, writing, listening and speaking skills. The service uses artificial intelligence to create courses and personalize content. It also provides the opportunity to take an English test and receive a certificate. Basic levels are available for free (with ads). Duolingo is gradually expanding its subjects, offering courses in math, music and chess.
Website: https://www.duolingo.com/
Duolingo is an online language learning platform offering over 40 different languages. It's available via suitable mobile app, allowing you to study whenever you want, without having to attend classes. Learning is structured as a series of short lessons with game-like elements (such as points, levels and "streaks") and an adaptive algorithm. The learning plan is suitable for both children and adults: you progress through levels of increasing difficulty and complete exercises that expand your vocabulary and develop your reading, writing, listening and speaking skills. The service uses artificial intelligence to create courses and personalize content. It also provides the opportunity to take an English test and receive a certificate. Basic levels are available for free (with ads). Duolingo is gradually expanding its subjects, offering courses in math, music and chess.
