Recall This is exactly what the name suggests - a super simple game that tests your memory.
— How it works —
1) A sequence of numbers are shown to you.
2) You have a few seconds to memorize it before it disappears.
3) Retype the sequence within the allotted time
4) Earn points as you retype the numbers correctly
5) The difficulty increases as you progress
The app keeps track of your historical scores so you have a record of your progress.