A number appears briefly and disappears — type it back exactly. You start with 3 digits and gain one each time you are right; one mistake ends the game. The last length you got right is your digit span.
How many digits is average?
Like the famous “magical number 7±2”, most adults remember about 7 digits. 9 or more is very good, and beyond 10 is top tier.
Tips to remember more
Chunk the digits into groups of 3–4 like a phone number. Saying them out loud or giving them a rhythm also helps.
FAQ
- The number disappears too fast.
- It is shown for 1s + 0.5s per digit, so longer numbers stay a little longer.
- Where is my record stored?
- Only your best is saved in this browser (localStorage). Nothing is sent to a server.


























