* Review Chinese vocabulary anywhere. Anki lets you study on your own computer, online, on your cell phone or other portable devices like an iPod touch or Zaurus.
* Shared decks allow you to divide work between friends, and let teachers push material to many students at once.
* Intelligent scheduler based on the SuperMemo SM2 algorithm.
* Flexible fact/card model that allows you to generate multiple views of information, and input information in the format you wish. You're not limited to predefined styles.
* Audio and images are fully supported
* Fully extensible, with a large number of plugins already available
* Optimized for speed, and will handle reviewing decks of 100,000+ cards with no problems
* Clean, user-friendly interface
* Free and Open Source