Game of Tongues: How Duolingo Built A $700 Million Business With Its Addictive Language-Learning App

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.
Article Tue, Jul 16, 2019
cover

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.