Reaction Time Test: Reflex

Measure, train, and improve your reaction time with 8 scientifically-designed cognitive test modes. Reflex is the most complete reaction time training app — used by athletes, gamers, students, and anyone who wants a sharper brain.

Your reaction time affects everything: driving safety, sports performance, gaming reflexes, and daily decision-making. Track your progress, beat your personal bests, and see how you compare with detailed performance analytics.

8 Test Modes

Simple Reaction — Tap when the screen turns green. Pure reaction speed.

Choice Reaction — Tap the matching direction. Tests decision speed.

Go / No-Go — Tap green, ignore red. Measures impulse control.

Audio Reaction — Tap when you hear the beep. Tests auditory reflexes.

Sequence Memory — Remember and repeat the sequence. Train working memory.

Tap Speed — Tap as fast as possible. Measure your CPS (clicks per second).

Color Match — Same or different colors? Tests visual processing.

Peripheral Vision — Spot the dot at the edge. Map your visual field.

Track Your Progress

- Personal best tracking for every mode

- Trend charts showing improvement over time

- Percentile ranking — see where you stand

- Daily streaks to build consistent training habits

- Shareable result cards to challenge friends

Beautiful & Respectful

- Premium dark mode with carefully tuned colors

- Micro-animations that make every tap feel alive

- No ads during tests — only on results dismiss

- Works 100% offline — no internet required

- Supports 12 languages

Whether you're an esports player training reflexes, an athlete improving response time, a student studying cognitive science, or just curious about your brain speed — Reflex gives you the tools to measure and improve.

Privacy First

All data stored locally on your device. No account required, no personal data collected.

Download Reflex today and discover how fast your brain really is!