The other day I wrote about Anki, a program which displays flash cards at intervals determined by the spacing effect. Although it has many benefits, the portability that is available with a stack of note cards may just be too much of a convince for some people to switch.

Fortunately, there’s AnkiDroid. As the name suggests, this is an implementation of Anki for the Android mobile operating system. Almost of all of the same options for studying exist, the same spacing effect algorithm, the ability to type in your answer before seeing the second part of the card, and it saves all your progress to a file so that you can keep the statistics in sync between your computer and phone.

The only downside is you must either use pre-made decks, or make the decks on your computer with the regular version of Anki. Although this may be slightly inconvenient, the efficiency is so much greater when creating the cards on the computer, that it would be foolish to implement such a feature for the phone version.

All in all, having the mobile version is a great complement to Anki, allowing you to quickly study a few cards in those gaps in your day when you haven’t the time to do anything else.