RatioScaled — Measure your mind.

A regular check-up for the most important organ you own

Plug in Chronobox

A 16-key precision instrument over USB. No app store, no Bluetooth lag, no calibration drift.

Run a battery in 8 minutes

Pick a protocol — daily check-in, monthly baseline, or full panel. Stimuli are hardware-timed; results stream live.

See the trajectory

Compare against age-matched norms, your own history, and intervention windows. Spot drift before symptoms appear.

A battery as broad as the brain itself

Reaction time

Simple, choice, and variability — the milliseconds your brain spends turning input into action.

Memory

Span, working memory, and the curve at which you forget.

Attention

Sustained focus, switching cost, and inhibition under load.

Learning

How fast you acquire, retain, and re-deploy a new pattern. Power-law fits to your own trial-by-trial data.

Motor coordination

Movement time, sequencing, and bimanual control.

Sensory discrimination

The smallest difference your perception will resolve.

Spatial reasoning

Mental rotation, pattern matching, and visual search.

Timing

Tempo tapping and rhythm reproduction at sub-millisecond precision.

Three views of the same brain

Baselines

A single full-panel run anchors every future test against your own ground truth — and against age-matched norms.

Daily fluctuation

Sleep, stress, caffeine, training. Quantify what moves the needle today, not next year.

Long-term trends

Reaction speed and working memory drift on different curves. Watch yours, on a timescale that matters.

A device that keeps up with your brain

Standardized

Hardware, firmware, and software — identical in every unit, benchmarked to a master clock.

Hardware-timed

Sub-millisecond stimulus and response. No browser jitter, no OS lag, no touchscreen.

Lab-grade at home

Clinical fidelity at your kitchen table, on a standing schedule. No clinic visit, no appointment.

Repeatable

Daily, weekly, forever. Practice effects are modeled out, not introduced.

Ratio-scaled

Absolute changes, not ordinal ranks. Sensitive enough to catch drugs, sleep, or early disease.

Universal

Self-administered in eight minutes. Ages 5+, any culture, no literacy required.

One device, three ways to use it

Longevity

$5/mo

Basic tracking. Full test library, age-matched norms, monthly trajectory report. Watch your curve.

Choose Longevity

Biohacker

$9/mo

Run experiments. A/B intervention windows, raw trial-level export, early access to new tests.

Choose Biohacker

Researcher

$50/mo

Author your own tests. Multi-profile management, CSV / API exports, IRB-friendly data agreements.

Choose Researcher

Measure your mind