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2021 IPO

Duolingo Stock

Free online language learning platform



Notable Investors

Kleiner Perkins Caufield & Byers


Pittsburgh PA, US

Total Funding


About Duolingo Stock

Duolingo is an online language learning service with a mission is to provide free language education to the world. Duolingo has more than 200 million users around the world. As of December 2017, Duolingo teaches 30 distinct languages with several more in development. Duolingo is available on the Web, Android, iOS and Windows Phone.


Funding History

October 2011$3.3M
September 2012$15.0M
February 2014$20.0M
May 2015$45.0M
July 2017$25.0M
November 2019$30.0M
April 2020$10.0M
July 2021$35.0M


Co-Founder & CEO

Luis von Ahn

Co-Founder & CTO

Severin Hacker


Duolingo launches support for Korean

TechCrunch - Sep, 7 2017

Can Duolingo Crush the TOEFL?

Slate - Apr, 29 2016

Duolingo speaks Google's language

Global University Venturing - Jun, 17 2015

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