Duolingo
Duolingo (/ˌdjuːoʊˈlɪŋɡoʊ/ DEW-oh-LING-goh) is an American educational technology company that produces learning apps and provides language certification.
| Type of business | Public |
|---|---|
| Traded as | Nasdaq: DUOL |
| Headquarters | Pittsburgh, Pennsylvania, United States |
| Area served | Worldwide |
| Founder(s) | |
| CEO | Luis von Ahn |
| Industry | Online education |
| Products | Duolingo, Duolingo ABC, Duolingo English Test |
| Services | Language, music and mathematics courses and tests. |
| Revenue | US$369 million (2022) |
| Operating income | US$−65 million (2022) |
| Profit | US$−60 million (2022) |
| Total assets | US$747 million (2022) |
| Total equity | US$542 million (2022) |
| Employees | 600+ (December 2022) |
| URL | duolingo |
| Advertising | Yes |
| Registration | Yes |
| Users | 60.7 million MAU (2022) |
| Launched | November 27, 2011 (private beta) June 19, 2012 (public release) |
| Current status | Online |
| Native client(s) on | Android, iOS |
Duolingo offers courses on music, math and over 40 languages, ranging from English, French, and Spanish to less commonly studied languages such as Welsh, Irish, and Swahili. 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 February 2023, Duolingo was the most popular language learning app in the world based on monthly downloads, with almost 13.4 million users downloading the app that month. A systematic review of research on Duolingo from 2012 to 2020 found comparatively few studies on the platform's efficacy for language learning, but identified several studies that had reported relatively high user satisfaction and enjoyment and positive perceptions of the app's effectiveness. Subsequent studies have concluded that Duolingo is effective for language learning and the acquisition of vocabulary.