Free reaction time test — instant play, no signup, no download
Quick Tap is a fifteen-round reflex test: a green target appears and you tap it as fast as you can. There is no choice and no decision — it is the purest reaction measure on the site, and the one where premature tapping is most tempting.
Wait for the green target to appear.
Tap it the instant it does.
Tapping early is penalised.
Fifteen rounds run with random delays.
Your score is your average reaction time.
Simple reaction time — the floor set by nerve conduction, processing and muscle activation. It varies with alertness and age but is very hard to train beyond your own range.
Keep your finger hovering, not resting. Contact primes a premature tap.
Do not try to predict the timing. The delays are randomised specifically to punish that.
Look at where the target will appear, not around the screen.
Run all fifteen rounds and use the average. A single best round is mostly luck.
Commonly quoted figures sit around a fifth of a second for visual reaction, but measured values depend heavily on the display and input hardware. Track your own average rather than comparing to a headline number.
Substantially. Display refresh rate, input lag and touchscreen polling can each add tens of milliseconds. Compare only runs on the same device.
Only modestly. Most of what improves is anticipation and consistency, not the underlying speed.
Vigilance decreases even over a short run. That decline is itself informative.