REFLEXLAB
Every mode explained – what it tests, how it works, and how you're scored.
ReflexLab includes four cognitive benchmark tests: a reaction time test, a tap speed test, a Stroop effect test, and a precision timing test. Each mode measures a different aspect of how your brain processes and responds to visual information. Here's exactly how each one works, what it measures, and how you're scored.
React to the color change
Classic mode measures your pure reaction time. A screen turns red – you wait – it turns blue – you tap as fast as possible. Your reaction time is measured in milliseconds from the moment the screen changes to the moment you tap. You do this for 5 rounds, and your session score is the average of all 5. Learn more about reaction time →
Tap the screen to start a round.
The screen turns red. Wait – don't tap yet.
After a random delay, the screen turns blue.
Tap as fast as you can the moment it turns blue.
Repeat for 5 rounds. Your session score is the average.
Note: Tapping early resets the round with a penalty. Reactions slower than 2000ms are marked as "Too Slow".
Simple reaction time – the speed of your stimulus-response pathway. Most sources estimate the average human visual reaction time at 200-280ms. ReflexLab uses 250ms as the baseline – the app's in-game tier system rates anything under 250ms as GREAT or better. The exact number varies by age, alertness, device, and test method.
Every reaction time test – whether on a phone, computer, or in a lab – adds some hardware delay. Your phone's display, touch sensor, and software processing all contribute a few milliseconds. For most phones this is roughly 20-40ms. Desktop browser tests typically add 30-80ms from mouse latency, OS event handling, browser overhead, and monitor refresh.
Neither gives you your true biological reaction time, but both are consistent enough to track improvement over time – which is what matters. ReflexLab uses millisecond precision timing to ensure your progress tracking is as consistent as possible.
Your score is the average reaction time across 5 rounds. Lower is better.
Note: ReflexLab uses a 10-tier rating system to give you a clear goal after every session. These are in-game ratings – they're designed to be fun and motivating, not scientific classifications.
Ranked by average reaction time (lower is better). Earn global badges like World Champion (#1) or Leaderboard Elite (Top 50).
Tap as many times as you can
Rapid Fire is a pure motor speed test. You get a 3-second window – when the signal hits, tap the screen as fast as humanly possible. Every tap counts. The total is your score. About tap speed testing →
Tap the screen to start.
Wait for the brief "GET READY..." countdown.
The screen turns red and says "TAP TAP TAP!"
You have 3 seconds to tap as many times as possible.
Your total tap count is your raw score.
Note: ReflexLab only counts one finger at a time – you can't cheat by mashing with multiple fingers. This makes the score a real measure of single-finger motor speed.
Motor speed and finger tapping rate. This tests the speed of your neuromuscular system – how fast you can repeatedly fire the same motor action. It measures physical throughput rather than reaction latency.
Based on normalized 3-second tap count. Higher is better.
Ranked by normalized tap count (higher is better). Requires Cloud Identity for global rankings.
Match text to ink color
The Stroop Effect was first described by psychologist John Ridley Stroop in 1935. It's one of the most well-known experiments in cognitive psychology and demonstrates how reading is an automatic process that's hard to suppress. ReflexLab turns this famous effect into a fast-paced game. What is the Stroop Effect? →
Start the 15-second session.
A word appears in a specific font and ink color.
If word name = ink color → TAP. This is a correct response.
If word name ≠ ink color → DON'T TAP. This is correct inhibition.
Correct taps give points; mistakes and misses add time penalties.
Be careful – 3 wrong taps ends your session early.
The Stroop Effect shows up in everyday life – when you're trying to focus on one thing while your brain automatically processes something else. In this mode, your brain naturally wants to read the text rather than identify the color, forcing you to suppress that automatic impulse.
Ranked by Adjusted Score: avgCorrectMs + (wrongTaps × 150) + (misses × 200). Lower is better.
Note: These tiers are ReflexLab's in-game rating system. They're designed to give you a goal to chase, not a clinical benchmark.
Ranked by adjusted score (lower is better). Requires Cloud Identity for global rankings.
Tap when the ring is perfect
Phantom Ring is a visual-motor precision test. A target ring is shown at a random size between 60 and 160 pixels, then disappears. You must time your tap to when a shrinking ring exactly matches that target's original size. The shrinking ring contracts at a speed of 120 pixels per second. About precision timing →
Observe the target ring preview (500ms).
The target disappears. A large outer ring starts shrinking.
Tap exactly when the shrinking ring matches the target's original size.
Error is measured in pixels (px). 0px is a perfect hit.
Repeat for 5 rounds to get your average error.
Visual-motor timing and anticipatory control. Unlike reaction tests, this requires you to predict the intersection point using visual working memory and motion tracking.
Ranked by average error in pixels (px). Lower is better.
Ranked by average error in pixels (lower is better). Requires Cloud Identity for global rankings.
One attempt per day – mode rotates daily
The Daily Challenge gives you one attempt each day at a rotating game mode. Every player gets the exact same sequence – same timing, same targets, same everything. Play it, see your result, and keep your daily streak alive.
Check the daily rotation to see which mode is active.
Take your one and only attempt for the day.
The deterministic seed (date-based) ensures every player sees the same sequence.
Versatility and focus. Since you only get one chance, it tests your ability to deliver your best performance on your first try without the benefit of practice rounds.
Available on Google Play
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