Chatterbug

Chatterbug is building a new way to help you master language skills through adaptive courses that respond to the way you learn, and one-on-one video sessions with native speakers from around the world.
To learn how to speak a language quickly, you need to get some vocabulary and grammar into your brain. With Chatterbug, you have access to a cutting-edge memorization system based on the effective Spaced Repetition learning method. You can easily learn hundreds of words and grammatical points in a matter of weeks.