Hi!
We created Lingling - free app for language learning designed for Android phones. With it you can learn about 750 words of foreign language per month! Until now we released several versions: for learning Spanish, English, Thai, Chinese, German and French. You can download it for free by clicking this link:
play.google.com/store/apps/developer
Our application becomes a hit and now it is being used by over a million people all around the world! We are constantly working on its improvement and that is why I would like to know what you think about LingLing. Is there anything you would like to change in it?