Duolingo: Learn Languages free on your Android, iPhone or Windows

Duolingo is one of the best app, i have seen. It is indeed best app for learning different languages. You can learn English, Dutch, French, German, Greek, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Traditional Chinese, Turkish, Vietnamese.

It has a eye catching interface and an easy way to navigate. You can learn like playing games. It offer's different levels and also take test to make it sure you are learning language right, Amazing thing is that it's totally free :)

Here are different Reviews from World Renowns:

•  "Among apps for learning or practicing a language, you can't beat Duolingo." —PC Magazine. Awarded Editors' Choice for Language Learning.

• "Far and away the best free language-learning app." —The Wall Street Journal

•  "We’ve also tried a few other methods such as book learning and Rosetta Stone, both of which bombed. That’s why I jumped at the chance to try Duolingo. And believe me, it’s addictive." —FluentIn3Months.com 

Duolingo is available on almost all mobile platform, You can download Duolingo for free from the links below.

For Android Phones and Tablets:  GooglePlayStore

For Apple iPhone and iPad: Apple Store

For Windows Phone: Windows