Intended to help Chinese speakers learn English, Duolingo has launched both simplified and traditional Chinese versions.Featuring an interface in simplified Chinese and a wide variety of American English lessons, the app surpassed 1.5 million downloads after its first week on the Apple store. The company currently offers English lessons for French, Spanish, German, Portuguese, Italian, Dutch, Russian, Polish, Turkish, Romanian, Hungarian, Korean, Japanese, Chinese, Indonesian and Hindi speakers.
“Their goal is in bringing free language education to the world and impacting the largest number of people whose lives could be greatly improved by having access to learning a new language - and this often means English.”
I download it and tried it for 5 minutes, it sucks. I wonder why so many people use it and also left a 5-star ratings reviews. Their goal obviously is strive to become famous and earn lots of money from advertising.