Duolingo, Inc., is an American educational technology company that produces learning apps and provides language certification. Duolingo offers courses...

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...

"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...

startups as of August 2017[update]: Neighborly, Zenreach, ResearchGate, Duolingo, Kopari Beauty, and Lemonade. Kutcher was born on February 7, 1978, in...

English-language tests worldwide, including IELTS, Pearson Test of English (PTE), Duolingo English Test, Cambridge Assessment English, and Trinity College London...

November 24, 2018. Retrieved November 23, 2018. "Duolingo's Klingon Course is now available!". Duolingo.com. March 15, 2018. Archived from the original...

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...