Language and mathematics courses and tests.Ģ7 November 2011 11 years ago ( ) (private beta)ġ9 June 2012 10 years ago ( ) (public release)ĭuolingo ( / ˌ dj uː oʊ ˈ l ɪ ŋ ɡ oʊ/ DEW-oh- LING-goh) is an American educational technology company which produces learning apps and provides language certification. Online education, Professional certificationĭuolingo, Duolingo Math, Duolingo ABC, Duolingo English Test
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