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App Store Apps > Sports > Dirty Knife Timer
Dirty Knife Timer icon

Dirty Knife Timer

by Shun Man Leung · Sports · Free
On the App Store since August 2025 · Data updated 2026-10-23

Dirty Knife Timer is made and published by Shun Man Leung. AppBrain is an independent app data site and isn't affiliated with Shun Man Leung. The app name, icon, screenshots and description belong to Shun Man Leung and are shown as published on the App Store.

AppBrain's verdict

Last updated
September 2, 2025
Official page on the App Store

Rankings

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Releases

Updates seen on the App Store
Version
1.5
Launched
August 2025

No changelog data

User feedback

Ratings and reviews on the App Store

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Technology

Found in the app by AppBrain
Price
Free
App size
6.46 MB
Content rating
Everyone

Technologies used by Dirty Knife Timer

About the app and developer

About Dirty Knife Timer

Dirty Knife Timer is a sports app developed by Shun Man Leung.

User Ratings

The app has no ratings yet.

App Information

Dirty Knife Timer is freely available from the App Store. The app size is 6.46 MB. The latest version available is 1.5. The last update was on September 2, 2025.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since August 2025.

Developer information for Shun Man Leung

Shun Man Leung

Address:

Frequently asked questions about Dirty Knife Timer

Is Dirty Knife Timer free?

Yes. Dirty Knife Timer is free on the App Store.

Is Dirty Knife Timer still available?

Yes. Dirty Knife Timer is on the App Store, and the last update we saw was on September 2, 2025.

How large is Dirty Knife Timer?

Dirty Knife Timer is 6.46 MB.

Is Dirty Knife Timer suitable for children?

App Store rates the content of Dirty Knife Timer as suitable for everyone.

Who made Dirty Knife Timer?

Dirty Knife Timer was developed by Shun Man Leung. It is listed in the sports category on the App Store.

Share Dirty Knife Timer

Store listing

By Shun Man Leung, from the App Store
Dirty Knife Timer Screenshot 1 of 4
Dirty Knife Timer Screenshot 2 of 4
Dirty Knife Timer Screenshot 3 of 4
Dirty Knife Timer Screenshot 4 of 4
Screenshots by Shun Man Leung, from the the App Store listing
Description by Shun Man Leung Written by the developer, not by AppBrain. Click to read.
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.
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