Digit Drill app for iPhone and iPad

Digit Drill helps perfect your technique for memorizing and recalling numeric data.

Digit Drill generates a random list of numbers, steps you through that list one number at a time and then prompts you to recall the list from memory by entering the numbers in the proper order. After you recall all of the numbers (or as many as you can remember) Digit Drill will calculate a score and provide you detailed results.

From the main screen tap the gear button to go to the setup screen where you can configure the application. From the setup screen you can also associate text and/or an image with each number (0 through 999).

On the main screen you can configure the range of numbers to be used and how many numbers to include in the list. Then tap the Start button to generate the list and begin memorizing.

Numbers from the list are displayed on the Memorize screen one at a time. If you have associated text or an image with the current number, you can flip the number over to see the associated text or image. Move forward and backward through the list until you have memorized all the numbers, then tap the Recall button.

On the Recall screen, enter the memorized numbers one at a time. After entering all of the numbers (or as many as you can recall) tap the Results button.

The Results screen will display your score plus a few other useful statistics as well as a list of the numbers you memorized alongside the numbers you recalled.

Scoring is based on the number of correct digits recalled, the average memorization time and the average recall time. Digit Drill will track your five top scores.

Digit Drill is based on leading memorization techniques. Search the web for “memorize numbers” or “figurative codes” to learn about these techniques.