Reaction Time Test: Millis
Reflex test
Free · Designed for iPad. Not verified for macOS.
Measured the moment your finger lands, not when it lifts. Five attempts, real statistics, no account and no paywall.
How fast are you, actually?
Reaction Time measures the gap between seeing something change and moving your
finger — and it measures it correctly.
Most reaction apps stop the clock when your finger lifts off the glass. That adds
your own release time to every single result, which is why their numbers run slow.
This one stops the moment your finger lands.
FOUR WAYS TO MEASURE
• Simple — the screen turns green, you tap. Raw reaction, nothing else.
• Choice — one of four panels lights up. Tap that one.
• Go / No-Go — green means tap, red means hold still. Speed plus restraint.
• Timing — a bar sweeps toward a line. Tap exactly when it arrives.
STATISTICS, NOT JUST A HIGH SCORE
Five valid attempts per session. You get the median (the number worth trusting),
your best, your mean, and your spread — how consistent you were. Attempts under
100 ms are marked as false starts and attempts over 3 seconds as misses. Both are
shown to you and both are left out of the maths, with the reason on screen.
WHAT IT DOES NOT DO
• No account. Nothing to sign up for.
• No paywall and no subscription. Every test is free.
• No data collected. Your sessions never leave this iPhone.
• Works completely offline, including in airplane mode.
Tiers are our own scale, not a population percentile. This app is for measurement
and entertainment, not medical or cognitive assessment.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Jinwan Kim, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jinwan Kim
- Size
- 5.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Kein Chronicle