Reaction Time Test: Reflexes

Three short tests. One profile. Three minutes.

REACTION
Six trials. Tap the moment the screen turns green. We take the median, not your fastest single trial — one lucky tap is not a measurement. False starts are recorded, not ignored.

MEMORY
A grid lights up in sequence. Repeat it. The sequence grows until you miss twice in a row. What you get is your visual span — the number of items you can hold at once.

LOGIC
Twelve matrix problems. Each grid follows rules — rotation, progression, alternation, superposition — and you pick the cell that completes it. Difficulty comes from how many rules run at once, never from a time limit.

WHAT YOU GET
A profile card with three bars, not a single number. A single number gets bragged about and forgotten; a lopsided profile makes you want to compare. Share the card with one tap.

HOW THE RANKING WORKS
Your reaction rank comes from published norms (Der & Deary, 2006 — 7,130 adults). Memory and logic have no ranking yet, and the app says so instead of inventing one. They open up once enough people have taken the test.

WHAT THIS IS NOT
This is not a clinical or diagnostic tool. It does not measure intelligence, and it makes no claim about your health. It measures three specific abilities, on this device, at this moment of the day.

NO ACCOUNT, NO SIGN-UP
Everything runs on your device. No login, no email, no personal data collected.