Milliseconds decide it. Five rounds, one median, brutally objective.
No account. Nothing leaves your phone unless you choose to share it.
GET READY
Wait for the screen to change, then tap anywhere.
practice — nothing is scored
GET READY
Wait for the screen to change, then tap anywhere. Take your time.
Your median (of 5)
0ms
Includes your device's screen and touch lag, not just your nerves — this is not a clinical test. Typical human visual reaction time is often cited around 200–250ms in general research (general research, not measured by this app).