DUOLINGO

                                                                DUOLINGO

Duolingo is a free language-learning and crowdsourced text translation platform. The service is designed so that, as users progress through the lessons, they simultaneously help to translate websites and other documents. As of August 2014, Duolingo offers Latin American Spanish, French, German, Brazilian Portuguese, Italian, Dutch, Danish, and Irish courses for English speakers, as well as American English for Spanish, French, German, Portuguese, Italian, Dutch, Russian, Polish, Turkish, Hungarian, Romanian, Japanese, Hindi, Indonesian, and Korean speakers. It is available on the Web, iOS and Android platforms.

Duolingo started its private beta on 30 November 2011 and accumulated a waiting list of more than 300,000 users. Duolingo launched for the general public on 19 June 2012 and as of January 2014 has 25 million users, out of which about 12.5 million are active. In 2013, Apple chose Duolingo as its iPhone App of the Year, the first time this honor was awarded to an educational application. Duolingo has won Best Education Startup at the 2014 Crunchies.