Duolingo is an American language-learning website and mobile app, as well as a digital language proficiency assessment exam. The company uses the freemium model: the app and the website are accessible without charge, although Duolingo also offers a premium service for a fee
Duolingo lessons adapt to your learning style. Exercises are tailored to help you learn and review vocabulary effectively.
Receive immediate grading
Instantly see which answers you get correct. When you miss a challenge, we’ll quickly show you how to improve
Stay motivated with rewards
Earn virtual coins, unlock new levels, and watch your fluency score rise as you master new words, phrases, and grammar.
Duolingo provides “Duolingo for Schools” with features designed to allow teachers to track students’ progress. In 2012 an effectiveness study concluded that Duolingo usage for Spanish study was more effective than classroom language-learning alone, but that Duolingo was less effective for advanced language learners
One proposed reason for this is that the grammar-translation method that Duolingo primarily uses is more applicable to simple words and phrases than to complex ones; simpler ones can translate in a more exact manner from one language to another and thus are more conducive to Duolingo’s grammar-translation method.