Cognitive Tests & Brain Games
These games measure and train six different cognitive skills. Each test has a personal best tracker and global average so you can see exactly where you stand. Play daily to build a streak and watch your scores improve. All scores stay in your browser — nothing is ever sent to a server.
Reaction Time
How fast can you respond to a visual stimulus? Measures simple reaction speed. Five rounds, averaged.
Number Memory
See how many digits you can hold in short-term memory. The number flashes briefly, then you type it back.
Aim Trainer
Click 30 circular targets as quickly as you can. Tracks average time per target. Best on desktop.
Sequence Memory
A 3×3 grid lights up in sequence. Watch, then repeat. Gets longer every level.
Math Sprint
How many arithmetic questions can you answer correctly in 60 seconds? Difficulty scales with your score.
Stroop Test
Click the colour of the ink, not what the word says. Classic cognitive interference test from 1935.
Visual Memory
Remember which squares flash on a grid. Grows larger and harder each level.
Typing Speed
Type as many words as you can in 60 seconds. Live WPM counter.
Chimp Test
Numbers flash on a grid then disappear. Click them in order. Chimpanzees beat most humans at this.