Reaction Time Tester

Reaction Time Tester measures how fast you can react — in milliseconds. Wait for the screen to turn green, then tap as quickly as you can. Miss the moment and tap too soon, and the round doesn't count.

How fast are your reflexes? This reaction time test lets gamers, athletes, and curious minds find out in seconds and keep chasing a faster score. Use it as a reflex trainer and reaction training tool, or just a quick reaction game with friends.

[ HOW IT WORKS ]

● Wait for Green
The screen shows red while you wait. At a random moment it flashes green — that's your cue.

● Tap Fast
The instant it turns green, tap the screen. Your reaction time is measured from the flash to your tap, down to the millisecond.

● Five Rounds
Play five rounds to get your average, best, and worst time. Tapping before green is flagged as "Too soon" so only real reflexes count.

● See Your Rank
Your result shows a grade and where you land compared to others — "faster than X% of people."

[ FEATURES ]

- Millisecond-precise reaction measurement
- Average, best, and worst across five rounds
- Grade badges from top tier to keep practicing
- Personal best record and recent history
- A simple tap speed and reflex trainer you can play daily
- Share your score and challenge your friends
- Works fully offline — no internet needed
- Light, dark, and system themes
- Clean, distraction-free design built for speed

[ GREAT FOR ]

- Gamers checking their reflexes for FPS and fighting games
- Athletes and esports players doing reaction training
- Friends competing for the fastest tap and click speed
- Anyone curious about how quick they really are

[ ACCURACY NOTE ]
Measured reaction times depend on your display refresh rate, touch sampling rate, and system latency, so absolute values vary between devices. Use this app to track and beat your own records or to compare on the same device.

Wait for green, tap fast, and see how quick you really are.

Recent changes:
• Minor stability improvements