Instagram / Weibo / RED open the system share sheet with the generated card imageGet the cards ↓
Version
1.1.1
Size
25 MB
First release
Sep 26, 2026
Category
Board
Description
from the App Store listing
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