Reaction Time Test: Reflex Lab

How fast are your reflexes? Most people react in about 250 milliseconds. Some are faster. Reflex Lab tells you exactly where you stand.

It's a reaction time test, tap speed test, Stroop test, and precision-timing game — four reflex games in one app, all measured down to the millisecond. Quick sessions, real competition, something to actually improve at.

— THE 4 MODES —

🔵 CLASSIC · Reaction Time Test
Wait for the signal. Tap the moment it appears.
5 rounds, averaged into one millisecond score. Simple, honest, addictive.

🔴 RAPID FIRE · Tap Speed Test
3 seconds. Tap as fast as you possibly can.
No tricks — just raw finger speed and rhythm. A pure tap speed test, no clutter.

🟣 STROOP · Focus & Cognitive Control
A colour word appears — but the ink colour doesn't match the word. Tap only when they do. Sounds easy. It isn't.
Based on the classic Stroop Effect, this mode tests how well your brain filters distractions. A real Stroop test you can run in 30 seconds.

🟢 PHANTOM RING · Precision Timing
A ring flashes briefly. Then an expanding ring closes in. Tap the exact moment they align.
A hand-eye coordination challenge measured in pixels — harder than it looks, deeply satisfying when you nail it.

— DAILY CHALLENGE —

Every day, a fresh reflex challenge goes live. One attempt. One score. Everyone plays the same sequence, so the competition is fair. Keep your streak going and see how you stack up globally.

— GLOBAL LEADERBOARDS —

Your scores go up against players from around the world. Climb the rankings, chase the top spots, and see where your reaction time really ranks.

— TRACK YOUR PROGRESS —

Every session is saved. See your bests, your averages, and your history across all four reflex games. Improvement is visible — and that's the point.

— SHARE YOUR RESULT —

After each session, generate a score card and send it to a friend. Challenge accepted or not — that's on them.

— WHY REFLEX LAB —

· A reaction time test, tap speed test, Stroop test, and precision-timing game in one
· Millisecond-precision timer
· Daily reflex challenge with streaks
· Global leaderboards
· Personal stats and history
· Smooth animations, haptic feedback, sound
· Clean, no-clutter UI
· Free to play. No paywall.

Reflex Lab is for anyone curious about their reaction time, anyone chasing a faster tap speed, and anyone who needs just one more attempt to beat their score. Whether you want to warm up before a match, test your focus during a break, or just see how your reflexes compare globally — open it up, hit start, and see how fast you really are.