Dirty Knife Timer
Sports
Free · Designed for iPad. Not verified for macOS.
This application is used to train quick-draw knife techniques, recording draw speed as a timer to enhance self-defense ability.
We utilize the iPhone’s accelerometer to achieve this.
Instructions:
1. Set your phone’s volume to maximum.
2. Set the countdown timer (can be a fixed time or random).
3. During the countdown, do not turn off the screen. Place the phone in your pocket.
4. When you hear the beep, immediately draw your knife.
5. The moment you come to a complete stop after drawing, the app will use accelerometer data to determine that you have finished the draw, thus calculating the time it took to draw the knife.
Thank you to Matei Florin for inspiring me.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Tap "Update" for a better experience.
This update version with more detailed data results on draw speed and reaction speed.
The developer, Shun Man Leung, 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
- Shun Man Leung
- Size
- 6.8 MB
- Category
- Sports
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 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
- © Leung Shun Man