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Duolingo

Duolingo is a free language-learning program.[2] Its website and mobile apps can be used on iOS, Android, Windows 8 and 10 operating systems. Duolingo allows people to learn over 106 different language courses in 43 languages.[3][4]

Duolingo
Duolingo logo (2019).svg
HeadquartersPittsburgh, Pennsylvania
Founder(s)Luis von Ahn, Severin Hacker
CEOLuis von Ahn
IndustryOnline education, Professional certification, Translation, Crowdsourcing
ServicesLanguage courses, Duolingo Test Center, Duolingo for Schools
Slogan(s)Free language education for the world
Websiteduolingo.com
Alexa rank▼ 869 (January 2017)[1]
Advertisingyes
Registrationyes
Available in
Multilingual
Current statusOnline

History

The project was started by Professor Luis von Ahn and graduate student Severin Hacker. The main development language used was Python.

Products and services

Courses

Language courses

Duolingo has 185 language courses teaching 43 languages.[5]

CEFR based language courses for learners of Chinese (Mandarin), English, French, German, Italian, Japanese, Korean, Portuguese, and Spanish are available for all users.[6][7][8][9] Additional courses are also available for speakers of English (Arabic, Czech, Danish, Dutch, Esperanto, Finnish, Greek, Haitian Creole, Hawaiian, Hebrew, High Valyrian, Hindi, Hungarian, Indonesian, Irish, Klingon, Latin, Navajo, Norwegian, Polish, Romanian, Russian, Scottish Gaelic, Swahili, Swedish, Turkish, Ukrainian, Vietnamese, Welsh, Yiddish, Zulu), Chinese (Chinese (Cantonese)), Arabic (Swedish), and Spanish (Catalan, Guarani, Russian, Swedish).[needs update]

Offices and workforce

Duolingo is headquartered in Pittsburgh, Pennsylvania, and has offices in Seattle, New York,[10] Detroit,[11] Beijing, and Berlin.[12] Duolingo employs around 830 people.[13][14]

Duolingo Media

  • Duolingo logo from 2011 to 2019

  • Die Sprachlernanwendung Duolingo verwendet einen ihrer eigenen Dialogsätze („Ihre Antwort ist richtig“) als Kursmaterial.

References

  1. ↑ "Duolingo". Ranking. Alexa Internet. Archived from the original on January 9, 2019. Retrieved January 23, 2017.
  2. ↑ Jill Duffy (August 6, 2015). "Duolingo". PC Magazine. Retrieved December 21, 2015.
  3. ↑ "100M users strong, Duolingo raises $45M led by Google at a $470M valuation to grow language-learning platform". Venture beat. Archived from the original on November 8, 2020. Retrieved June 21, 2015.
  4. ↑ "Duolingo – Learn Languages for Free". Windows phone. Microsoft. Archived from the original on July 2, 2015. Retrieved November 21, 2014.
  5. ↑ Matt (February 20, 2023). "The Complete List Of EVERY Duolingo Language". Duoplanet. Archived from the original on September 21, 2022. Retrieved March 4, 2025.
  6. ↑ "Duolingo Launches 148 New Language Courses Expands Access to Popular Languages Including Japanese and Korean". Stock Titan. https://www.stocktitan.net/news/DUOL/duolingo-launches-148-new-language-courses-expands-access-to-popular-kha0hrp8w1hp.html. Retrieved June 21, 2025. 
  7. ↑ "Duolingo Launches 148 New Language". Globe News Wire. April 30, 2025. https://www.globenewswire.com/news-release/2025/04/30/3071105/0/en/Duolingo-Launches-148-New-Language-Courses-Expands-Access-to-Popular-Languages-Including-Japanese-and-Korean.html. Retrieved June 21, 2025. 
  8. ↑ "Duolingo Adds 148 Courses as AI Replaces Human Contractors". Analytics India Magazine. April 30, 2025. https://analyticsindiamag.com/ai-news-updates/duolingo-adds-148-courses-as-ai-replaces-human-contractors/. Retrieved June 21, 2025. 
  9. ↑ "Unofficial Duolingo Course Data". duolingodata.com. Retrieved January 23, 2025.
  10. ↑ Budds, Diana (September 5, 2024). "Inside Duolingo's stunning new NYC office, where employees get to choose where and how they work". Fast Company. https://www.fastcompany.com/91183352/duolingo-office-nyc-employees-choices-about-how-they-want-to-work. Retrieved September 5, 2024. 
  11. ↑ Perez, Sarah (July 9, 2024). "Duolingo acquires Detroit-based design studio Hobbes". TechCrunch. Retrieved July 22, 2024.
  12. ↑ "Duolingo Careers". careers.duolingo.com. Retrieved November 3, 2024.
  13. ↑ SeanColombo (September 27, 2024). "I'm not sure, we don…". r/duolingo. Retrieved September 28, 2024.
  14. ↑ Patel, Nilay (October 14, 2024). "Duolingo CEO Luis von Ahn thinks AI has a lot to teach us". The Verge. Retrieved November 2, 2024.

Other websites

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