Mnemojojo allows cards from Mnemosyne (a spaced-repetition flash-card program) to be reviewed on most mobile phones that support Java (J2ME). Mnemojojo does not replace Mnemosyne: cards are still added, edited, and deleted using a desktop or laptop computer. Rather, cards for several days are exported using the Mnemogogo plugin and then transferred to a mobile phone where they can be reviewed on the go. When those cards have been reviewed, they are imported back into Mnemosyne, and more cards may be exported.