This app was removed from the App Store.
Mac OS Education
*** Test your memory ***
How many digits can you remember?
This very simple app test allows you to test your digit span.
A number is shown for a few seconds, and your goal is to recall it after a two second delay.
Built in Statistics (Stats) view let's you to look up your last 4 scores.
If you'll like it you may consider supporting the author and buying a full history of statistics using an In App Purchase.