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Duolingo, Inc. is an American educational technology company that produces learning apps and provides language certification.Duolingo offers courses on music, math, and 43 languages, ranging from English, French, and Spanish to less commonly studied languages such as Welsh and Irish.
Duolingo logo. In 2009, von Ahn and his graduate student Severin Hacker began to develop Duolingo, a language education platform. They founded a company of the same name, with von Ahn as chief executive officer and Hacker as chief technology officer. In November 2011, a private beta test of Duolingo was launched and the app was released to the ...
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 test that uses an algorithm to adapt the difficulty of the test to the test-taker. [1] [2] [3] It was developed by Duolingo and grew in popularity and acceptance at universities during the ...
Despite those challenges, Duolingo's stock advanced about 13% over the past 12 months and remains more than 70% above its IPO price. But it still underperformed the S&P 500, which rallied 27% ...
For tens of millions of users, language learning apps like Duolingo have provided an opportunity to freshen up on French or try their hand at Mandarin. The now 13-year-old language platform, which ...
Many Duolingo users have noticed the happy-go-lucky bird had become wrinkly and somber in the application’s icon. But, no one from Duolingo has confirmed why Duo decided to go dark. Users have ...
The following is a non-exhaustive list of standardized tests that assess a person's language proficiency of a foreign/secondary language. Various types of such exams exist per many languages—some are organized at an international level even through national authoritative organizations, while others simply for specific limited business or study orientation.
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