Duolingo iPhone app. A great way to learn a foreign language

This is the first post of a series of suggestions about apps and educational sites that will help students, parents and teachers discover useful learning resources. Today's suggestion is an app called Duolingo, an iPhone app that helps you learn a foreign language through games and puzzles. It encourages interaction with real work situations and teaches you in a way that is both fun and engaging. You can downloaded free from the App Store. Feel free to tell us If it worked for you.