Duolingo home page visited while logged out in March 2024
Type of business
Public
Traded as
Nasdaq: DUOL (Class A)
S&P 400 component
Founded
2011; 13 years ago (2011)
Headquarters
Pittsburgh, Pennsylvania, U.S.
Area served
Worldwide
Founder(s)
Luis von Ahn
Severin Hacker
CEO
Luis von Ahn
Industry
Online education
Products
Duolingo
Duolingo ABC
Duolingo English Test
Services
Language, music, and mathematics courses and tests.
Revenue
US$531 million (2023)
Operating income
US$−13 million (2023)
Profit
US$16.1 million (2023)
Total assets
US$954 million (2023)
Total equity
US$656 million (2023)
Employees
≈ 720 (December 2023)
URL
duolingo.com
Advertising
Yes
Registration
Yes[a]
Users
88.4 million MAU (Q4 2023)
Launched
November 27, 2011; 12 years ago (2011-11-27) (private beta) June 19, 2012; 12 years ago (2012-06-19) (public release)
Current status
Online
Native client(s) on
Android, iOS
[1][2][3][4]
Duolingo, Inc.[b] is an American educational technology company that produces learning apps and provides language certification. Duolingo offers courses on music,[5] math,[6] and 43 languages,[7] ranging from English, French, and Spanish to less commonly studied languages such as Welsh and Irish.[8] Other services include the Duolingo English Test, an online certification program, and Duolingo ABC, a literacy app for children. The company uses a freemium model, with its optional premium service, Super Duolingo, being ad-free and offering more features.
As of January 2024[update], Duolingo was the world's most popular language learning app based on monthly downloads, with around 16.2 million users downloading it that month.[9] A systematic review of research on Duolingo from 2012 to 2020 found comparatively few studies on the platform's efficacy for language learning, but the review identified several studies that reported relatively high user satisfaction and enjoyment and positive perceptions of the app's effectiveness.[10] The company is often recognized for its successful marketing tactics.[11][12]
Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).
^"Duolingo, Inc. 2023 Annual Report (Form 10-K)". U.S. Securities and Exchange Commission. February 29, 2024. Retrieved March 1, 2024.
^"Migrating Duolingo's Android app to 100% Kotlin". blog.duolingo.com. April 6, 2020. Archived from the original on December 23, 2020. Retrieved September 17, 2020.
^"Real World Swift – Making Duolingo Blog". making.duolingo.com. January 7, 2015. Archived from the original on June 6, 2019. Retrieved October 22, 2018.
^"Rewriting Duolingo's engine in Scala – Making Duolingo Blog". making.duolingo.com. January 31, 2017. Archived from the original on August 4, 2019. Retrieved February 1, 2017.
^Ortiz, Sabrina. "Duolingo opens waitlist for its new, free music course. Here's how to sign up". ZDNET. Archived from the original on October 12, 2023. Retrieved October 11, 2023.
^Duolingo Team (October 26, 2022). "Duolingo Math makes learning easy as pi(e)". Duolingo. Archived from the original on October 27, 2022. Retrieved October 27, 2022.
^Cite error: The named reference :3 was invoked but never defined (see the help page).
^Higgins-Dunn, Noah (April 14, 2019). "If you are a 'Game of Thrones' fan, this app will teach you how to speak in High Valyrian". CNBC. Archived from the original on November 12, 2019. Retrieved May 23, 2022.
^Ceci, Laura. "Top language learning apps by downloads 2023". Statista. Archived from the original on January 20, 2024. Retrieved October 6, 2023.
^Shortt, Mitchell; Tilak, Shantanu; Kuznetcova, Irina; Martens, Bethany; Akinkuolie, Babatunde (March 4, 2023). "Gamification in mobile-assisted language learning: a systematic review of Duolingo literature from public release of 2012 to early 2020". Computer Assisted Language Learning. 36 (3): 517–554. doi:10.1080/09588221.2021.1933540. ISSN 0958-8221.
^Cohen, Ben (June 14, 2024). "The Only App That Always Wins the Battle for Your Attention". The Wall Street Journal.
^Morley, Olivia (April 5, 2024). "Duolingo's Masterminded Social Listening Tactics". www.adweek.com. Retrieved June 18, 2024.
Duolingo, Inc. is an American educational technology company that produces learning apps and provides language certification. Duolingo offers courses on...
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...
reCAPTCHA, which was sold to Google in 2009, and the co-founder and CEO of Duolingo. Luis von Ahn was born and raised in Guatemala City. He is of Guatemalan...
1984) is a Swiss computer scientist who is the co-founder and CTO of Duolingo, the world's most popular language-learning platform. Hacker was born and...
startups as of August 2017[update]: Neighborly, Zenreach, ResearchGate, Duolingo, Kopari Beauty, and Lemonade. Kutcher was born on February 7, 1978, in...
"High Valyrian for English". Duolingo Wiki. Retrieved 4 April 2017. "Course Status: High Valyrian for English Speakers". Duolingo Language Incubator. Archived...
Wayback Machine, October 23, 2021, Duolingo.com. Accessed October 23, 2021 "Duolingo Language Courses". Duolingo. Archived from the original on November...
one of several major English-language tests worldwide, including IELTS, Duolingo English Test, Cambridge Assessment English, and Trinity College London...
song. This particular letter (אָ) is also used to represent Yiddish on Duolingo, replacing a "Yiddish flag" on the pattern of the flag of Israel but in...
November 24, 2018. Retrieved November 23, 2018. "Duolingo's Klingon Course is now available!". Duolingo.com. March 15, 2018. Archived from the original...
Valyrian dialogue is often subtitled in English. Language-learning company Duolingo began offering courses in High Valyrian in 2017, of which 1.2 million people...
corporations also responded, including educational technology company Duolingo and meat producer Oscar Mayer. In addition to users releasing freestyle...
Archived from the original on 14 December 2022. Retrieved 6 June 2022. "duolingo". duolingo. Archived from the original on 23 October 2022. Retrieved 18 July...
Doximity U.S. medical doctors Dreamwidth Blogging Dulwich OnView Blog Dulwich Duolingo Language learning community and forums DXY.cn Chinese health care professionals...
April 24, 2019. Protalinski, Emil (June 10, 2015). "100M users strong, Duolingo raises $45M led by Google at a $470M valuation to grow language-learning...
to do so for free on the Duolingo app since October 2018. As of March 2022, it is the language of choice for 586,000 Duolingo users. Hawaiian classes are...
On May 15, 2023, Crunchyroll partnered with the language learning app Duolingo to help users learn Japanese via anime. On October 6, 2023, Senior Vice...
system is used, or differences in morphology. AppTek Cache language model Duolingo Europarl corpus Example-based machine translation Google Translate Hybrid...
which are Neural Text-to-Speech voices of higher quality. Users include Duolingo, a language education platform. Amazon Lex Amazon Rekognition Amazon SageMaker...
the Yiddish language in its foreign language option. On April 5, 2021, Duolingo added Yiddish to its courses. In addition to Modern Hebrew and New York...
July 2013. "Duolingo website register". "Tweet by Duolingo on St. Patricks Day 2018". "Ar fheabhas! President praises volunteer Duolingo translators"...
italo-brasiliano (Fanfulla)" (in Italian). Retrieved 6 June 2022. "duolingo". duolingo. Retrieved 18 July 2017. "Dati e statistiche". Esteri.it. 28 September...
pioneers of crowdsourcing and the founder of the companies reCAPTCHA and Duolingo. Colombian-American Ana Maria Rey received a MacArthur Fellowship for her...
original on 9 October 2011. Retrieved 22 September 2011. "Duolingo English Test". englishtest.duolingo.com. "TOEFL: For Academic Institutions: Compare Scores"...
from the original on July 10, 2014. Retrieved August 14, 2014. "Duolingo". www.duolingo.com. Archived from the original on 2018-10-06. Retrieved 2018-10-06...
decline in academic performance. GPT-4 is used by the language-learning app Duolingo, enabling users to chat with its characters or to get explanations for...
Global Information
US$531 million (2023)
US$−13 million (2023)