Free
With Ads
Rating summary
About
See the numbers. Remember them.
The moment you tap "1", every other number hides. Tap them in order from memory alone. Each success adds another number — until you find your limit.
In a famous Kyoto University study, chimpanzees breezed past level 9. Can you beat a chimp?
Features
• Learn in 3 seconds, challenge forever
• Your level IS your instant memory — share your score card
• 100% offline, no login, no signup
• Fast, lightweight, dark design
• English, Korean, Japanese
Show more
What's New in Memo
1.1.1
September 26, 2026
Improved ad stability.
