
Reflex Trainer
Reaction Speed & Punch Trainer
Free · Designed for iPad
Reflex Trainer measures your reaction time with precision — using reak motion detected by your Apple Watch or iPhone.
How It Works
A visual stimulus flashes on your screen. React as fast as you can by throwing a punch (detected by your Apple Watch or iPhone
accelerometer at 50Hz). Your reaction time is measured in milliseconds.
Two Training Modes
Combat Sports Mode
Designed for boxing, MMA, kickboxing, and martial arts athletes. Throw a real punch when you see the flash. Your Apple Watch detects
the motion — no screen tapping needed. Hold your phone in your fist as a fallback when training without a watch.
General Reaction Mode
A classic reaction time test for anyone. Tap the screen or move your wrist the instant you see the stimulus. Perfect for gamers,
athletes, and anyone who wants to measure and improve their reflexes.
Key Features
- Apple Watch integration with real-time accelerometer punch detection
- Customisable rounds (1-10 per session)
- Per-round breakdown with average, best, and worst times
- Performance ratings
- Works with or without Apple Watch
- No ads. No accounts. No subscriptions.
Who Is This For?
- Boxers, MMA fighters, and combat sports athletes
- Martial arts practitioners training reaction speed
- Gamers looking to benchmark and improve reaction time
- Personal trainers and coaches measuring client reflexes
- Anyone curious about their reaction speed
Start training. Get faster.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
-Added reaction differential values to each new punch (see if you improved or not on the previous reaction).
-Now shows the final punch reaction time before transition to results screen.
-Improved connection handling between the App and Apple Watch.
-Updated reaction time calculation to account for watch connection latency.
The developer, Max Szolcek, 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
- Max Szolcek
- Size
- 2 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. - Apple Watch
Requires watchOS 10.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Max Szolcek