16. Pinfruit

Pinfruit

This is one of the few tools on the Internet that will help you to memorize strings of numbers.

You have to memorize a number of numbers and letters, such as the number 2 is represented by the letter "n." Enter the string of numbers and it gives you words to represent the numbers.

Pick the words that help form a memorable sentence, and then use the first letters to help you recall the string of numbers.

Mindtools