The Mnemosyne software resembles a traditional flash-card program to help you memorise question/answer pairs, but with an important twist: it uses a sophisticated algorithm to schedule the best time for a card to come up for review. Difficult cards that you tend to forget quickly will be scheduled more often, while Mnemosyne won't waste your time on things you remember well.

The Mnemosyne Project has two aspects:
It's a sophisticated free flash-card tool which optimises your learning process.
It's a research project into the nature of long-term memory.

The software runs on Linux, Windows and Mac OSX.