Game of Tongues: How Duolingo Built A $700 Million Business With Its Addictive Language-Learning App
- Article
- Jun 16, 2019
- #Startup #Education
Created seven years ago by MacArthur “genius” computer geek Luis von Ahn, Duolingo has hooked everyone from Bill Gates, Khloe Kardashian and Jack Dorsey to Syrian refugees in Turkey...
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