Duolingo
Computer program · duolingo.com
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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 over 40 languages, ranging from English, French, and Spanish to less commonly... Wikipedia
Written in: Scala
Founders: Luis von Ahn and Severin Hacker
Employees: c. 720 (2023)
Founded: 2011
Headquarters: Pittsburgh, Pennsylvania, United States