ReflexTap · for iPhone
Wait for the screen to flash green, then tap as fast as you can. ReflexTap measures the gap between the cue and your tap to the millisecond. Tap early and it is a false start — no cheating the clock.
ReflexTap grades the median of a test on this scale:
| Grade | Median reaction time |
|---|---|
| Elite | under 170 ms |
| Great | 170–209 ms |
| Good | 210–259 ms |
| Fair | 260–329 ms |
| Slow | 330 ms and over |
Every reaction time measured on a phone includes the screen and the touch sensor as well as you. So the useful comparison is you against yourself, on the same phone — not against a number from another device.
One distracted tap can drag an average up by tens of milliseconds. The median — the middle result — shows your typical speed, and the 90th-percentile time shows how consistent you are, which is what Endurance is scored on.
Quick Test is free. ReflexTap Pro, a one-time purchase, unlocks Endurance and Anticipation.
Last reviewed 22 September 2026