LayraApp — Reaction Trainer
Reflex & brain speed test
Free · Designed for iPad. Not verified for macOS.
KNOW YOUR TRUE REACTION SPEED
Most reaction "tests" measure themselves, not you. They start the clock in a web page or a game loop and quietly add tens of milliseconds of lag — so the number you see is the app's delay, not your reflexes. Layra is built the opposite way.
Every stimulus is timed to the exact display frame that lights it up, and every tap is read from the raw hardware touch timestamp — the same approach used in cognitive research. On a 120 Hz iPhone that's single-frame accuracy. The number is you.
ONE SCORE: YOUR NEURAL RESPONSE SCORE
A 90-second Calibrate turns your reflexes into one honest number, 0 to 1000. See where you land against global reference data, watch your trend move, and keep a daily streak. Your reflexes lead the score; memory, perception, and focus refine it.
17 GAMES ACROSS FOUR SYSTEMS
Reflex — Reaction (tap on green), Choice (pick the side), Impulse (hold on red), Echo (tap the tone you hear), Pulse (tap the buzz you feel), Clash (tap the ink, not the word), Tilt (lean the phone), Pursuit (tap the crossing).
Memory — Span (repeat the pattern), Flash (numbers, then masks), Echoes (match two back).
Perception — Clock (feel ten seconds), Subito (count at a glance), Shade (spot the odd tile).
Focus — Vigil (catch the rare target), Split (two things at once), Sums (sprint the math).
THE DAILY
The same challenge for everyone on Earth, every day — fully offline. Four quick rounds, a streak to protect, and a spoiler-free grid to share. No numbers leaked, just your run.
DEEP SESSIONS
A longer block with a measured start and finish, so you can see exactly how far your reactions drift as you tire.
DUEL A FRIEND
Send a link. They race your "ghost" on the identical sequence. Lowest median wins — no servers, no accounts.
SEE EVERYTHING
A sensory radar, 30-day trend lines, personal bests, and per-system breakdowns — all charted on device.
BUILT RIGHT
• Fully offline. Works in airplane mode, forever.
• No ads. No tracking. No analytics. No account.
• Nothing you do ever leaves your phone. The only optional online feature is Apple's Game Center leaderboard.
• Native SwiftUI for iPhone and iPad, iOS 17 and up.
• Respects Reduce Motion, VoiceOver, and Dynamic Type.
Layra is a training and measurement tool, not a medical device, and makes no health claims.
Know your true reaction speed.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Darjus Kazakevic, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Darjus Kazakevic
- Size
- 6.4 MB
- Category
- Health & Fitness
- 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.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Darjus Kazakevic
