Duolingo is an American educational technology company that produces learning apps and provides language certification. Duolingo also offers the Duolingo English Test certification program and a literacy app for children called Duolingo ABC, and the company released an elementary-level math app called Duolingo Math currently exclusive to iOS.
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How long does it take to 100% Duolingo?
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To finish a language tree on Duolingo in 6 months, you will need to spend a minimum of 130 minutes per day on Duolingo, for a full 180 days. That’s 2 hours and ten minutes.
Is Duolingo certificate worth?
Well, it does, and the certificate is valid for two years. It takes around 48 hours to generate this certificate, and it contains the student’s scores. Last but not least, the Duolingo exam can be attempted as many times as you want.
The idea for Duolingo was initiated at the end of 2009 in Pittsburgh by Carnegie Mellon University professor Luis von Ahn and his Swiss-born post-graduate student Severin Hacker.
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