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Training
Train the moment. Not the rhythm.
REACNAR removes the countdown, the beat, and every cue your brain could lock onto. What's left is the only thing that matters under pressure — your raw response to an unpredictable stimulus.
The science
How reaction training actually works.
Unpredictable stimulus
Cues are generated from a cryptographic source. No pattern, no rhythm, no warm-up window for your brain to anticipate.
Reflex conditioning
Repeated exposure to unscheduled stimuli tightens the perception-to-action loop and lowers your floor reaction time.
Consistency over peaks
A 210 ms average with a 12 ms spread beats a 195 ms peak with a 60 ms spread. We train the band, not the brag.
Modes
Three modes. One engine.
Single Tick
One cue. One reaction. Random delay between 1.2s and 9s. Used to benchmark your raw reflex floor and surface day-to-day variance.
Burst Mode
3–7 cues fired at unpredictable intervals inside a single session. Trains repeatable response under sustained attention.
Endurance Mode
Continuous cues for 3–10 minutes. Reveals how fatigue, breathing, and focus shape your decay curve over time.
The rules
No cheating the clock.
No countdown
No 3-2-1. No visible timer. The tick fires when it fires.
Random tick intervals
Inter-cue delay is sampled from a non-uniform distribution every session.
False start penalty
Tap before the tick and the attempt is voided. Repeated false starts add a cooldown.
Millisecond precision
Results are measured to the millisecond and corrected for your device's input latency.
The flow
A single attempt, end to end.
- 01Wait
Hold steady. No cues. The window can last 1s or 9s.
- 02Tick
A single high-contrast stimulus fires without warning.
- 03React
Tap as soon as you perceive the cue. Don't predict.
- 04Record
Reaction time captured in ms and logged to your session.