Mnemosyne also has many other features, such as the ability to produce 3-sided cards, include pictures and can even run directly from a USB stick (which means you can probably use it on school computers without having to install it)
The Mnemosyne program is available for Windows, Linux and Mac.
Windows users should click here to download it.
Mac users can download it here
Linux users can install effortlessly by typing the following into a terminal.
sudo apt-get install mnemosyne
Click here for more information about Mnemosyne