LINK TO SITE
Learn languages completely free, without ads or hidden charges. It's fun, easy, and scientifically proven. Duolingo was Apple's 2013 App of the Year! Learn Spanish, French, German, Portuguese, Italian, and English. Available for iOS and Android. The iOS app is really well-designed.
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. Learning a new language isn’t easy. It won’t replace your textbook, but it supplements a 101 class quite nicely.
Users gain "skill points" (coins) as they learn a language, such as when they complete a lesson. Skills are considered "learned" when users complete all the lessons associated with the skill. Up to 13 points are awarded per lesson, with three points deductible for mistakes. Users start with four "lives" on early lessons, and three on later lessons, a "life" being lost with each mistake. A user must retry the lesson if they make a mistake after all lives have been lost. Duolingo also includes a timed practice feature, where users are given 30 seconds and twenty questions and awarded a skill point and seven or ten additional seconds (time depends on the length of the question) for each correct answer. Courses can teach upwards of 2,000 words. (from Wikipedia)