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Duolingo, Inc. is an American educational technology company that produces learning apps and provides language certification. Duolingo offers courses on music, math, and 43 languages, ranging from English, French, and Spanish to less commonly studied and
In 2009, von Ahn and his graduate student Severin Hacker began to develop Duolingo, a language education platform. They founded a company of the same name, with von Ahn as chief executive officer and Hacker as chief technology officer. In November 2011, a
The Duolingo English Test (DET) is a standardized test of the English language designed to be internet-based rather than paper-based. DET is an adaptive test that uses an algorithm to adapt the difficulty of the test to the test-taker. It was developed by Duolingo .
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Carnegie Mellon University ( PhD) Known for. Duolingo. Scientific career. Institutions. Carnegie Mellon University, ETH Zurich. Doctoral advisor. Luis von Ahn. Severin Hacker (born July 6, 1984) is a Swiss computer scientist who is the co-founder and CTO of Duolingo, the world's most popular language-learning platform.
Duolingo features a course for Klingon, which was released on March 15, 2018 and is now in beta testing. The Klingon Language Institute provides a Learn Klingon Online series of lessons to its members. The first few lessons are free to sample. Memrise Canon
Duolingo 43 25 application or web freemium with all learning features free Foreign Service Institute 42 1 (English) web free Pimsleur Language Programs (company) 40 50 audio BBC Online 40 1 (English) web free LingQ 46 17 application or web freemium 82 free
Duolingo English Test (DET) - Duolingo E3PT - English3 Proficiency Test E3J1 English Interview ECL - European Consortium for the Certificate of Attainment in Modern Languages EF Standard English Test ELSA English Language Skills Assessment at CEFR
