Von Ahn had sold his second company, reCAPTCHA, to Google and, with Hacker, wanted to work on something related to education. The idea for Duolingo was initiated at the end of 2009 in Pittsburgh by Carnegie Mellon University professor Luis von Ahn and his post-graduate student Severin Hacker. Duolingo offers a premium service which eliminates advertising and offers more features.ĭuolingo also offers the Duolingo English Test certification program and a literacy app for children called Duolingo ABC, and the company released an elementary level math app called Duolingo Math currently exclusive to iOS. The company uses a freemium model with over 500 million registered users. Duolingo offers over 100 total courses across over 40 distinct languages including a small variety of constructed languages.
On its main app, users can practice vocabulary, grammar, pronunciation and listening skills using spaced repetition.
Kotlin, Swift, React, Python, Scala, HTML, CSS, JavaScriptĭuolingo ( / ˌ dj uː oʊ ˈ l ɪ ŋ ɡ oʊ/ DEW-oh- LING-goh) is an American educational technology company which produces apps for language-learning and provides language certification.
Duolingo incubator professional#
Online education, Professional certificationĢ7 November 2011 10 years ago ( ) (private beta)ġ9 June 2012 10 years ago ( ) (public release)
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