10s (d39370)

Your reaction time, measured in ten seconds.

10s packs five mini-tests, each about ten seconds long, to measure your reaction, inhibition and accuracy:

• The 10s: stop a counter right on a hidden target, visual or haptic
• Traffic light: tap on green, hold still on amber
• Emergency brake: react fast, and on the right side
• Moving target: it pops up somewhere unpredictable, spot it and hit it
• Sequence: memorise a string of arrows, then repeat it

Chain all five back to back in the full assessment (about a minute) for an overall score out of 100 and a detailed profile per test. After three assessments, the app builds your personal baseline and compares every new result to your own usual level, not a generic average.

Concrete numbers: each result also converts to distance. At 50, 90 or 130 km/h, how far does your car travel before you react?

Every session is saved and browsable in your stats: record, average, reliability, progression and spread, test by test. Several players can share one phone, each with their own history.

Settings: French or English, light or dark theme, and 9 alternate app icons.

10s is free, works offline and has no ads. No account needed: everything stays on your phone.

Indicative only: 10s is neither a medical device nor a certified fitness-to-drive test. A good result never means you're fit to drive. A result clearly below your usual level, though, is worth taking s...