# Kendo Dummy > Kendo reaction training app using motion sensors and visual cues. (iPhone/iPad app by Chris Tilt.) - Source: https://appshunter.io/ios/app/kendo-dummy/id399867904 (this page in markdown: same URL + `.md`) - Developer: [Chris Tilt](https://appshunter.io/developer/386223747) - Category: Sports, Education - Price: $0.99 - Rating: 5.00/5 from 2 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 3 MB - Languages: English - Released: 2010-11-12 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/kendo-dummy/id399867904/reviews.md ## What is Kendo Dummy? Kendo Dummy is a fun way to hone your Kendo reaction time. Just strap your iPhone to a kendo target where it won't get hit and start training! Kendo Dummy counts down with clear traffic signals but waits for a random time before flashing green! That's time to hit! After you hit, Kendo Dummy tells you how quick was your reaction and saves your best time for each session. You can use it to train your class and see who gets the best time - Kendo Dummy flashes your time in green each time you get better too! Ready... Hajime! It works by using the motion sensors on the iPhone or iPod to feel a bump. You can lay the device on the table, prop it up against something or velcro an old case to a target. It works like magic when you try it! An easy user interface and minimal words make Kendo Dummy a breeze to use. A setup screen (hit the 'i' button) lets you adjust how much motion triggers a hit and also lets you vary the delay time. It automatically restarts after each hit so that you can get ready and train again without touching the screen. A reset button lets you reset the "best" time too. This app is fun and easy to use, but also very accurate and practical for serious training. ## Key features - Reaction time training - Motion sensor detection - Randomized countdown - Best time tracking - Class training mode - Adjustable sensitivity and delay ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/kendo-dummy/id399867904/reviews.md ### 5/5 — Great update with Video Playback *2014-08-07, version 1.2* I really like this version because it plays back the video of my strike and I can see my posture, if I’m dipping the shinai down when I go in, and how straight am I moving. Works better on my iPhone5 now too, using the whole screen. ### 5/5 — Fun after keiko *2012-01-12, version 1.1* This little app is a blast. Although it is kendo themed it is really just an easy (simple) device to measure reaction time. In a kendo context it is a lot of fun at post keiko get togethers to simply use sitting on the table top. I know that it can be attached to a kendo hitting dummy or even actual bogu as well. I am sure I would have made 7 dan faster if I had used this fun app during my post practice cool downs. It certainly has been fun with other kenshi. ### 5/5 — Great for working on reaction speed! *2011-04-07, version 1.1* This app is simple and does what it's supposed to. Settings for time and striking strength add to the varoety of practice one can use this for. Green light is always random so you can't get familiar with when to strike. I've got my iPhone in an ID case attached to a lanyard. I hang it around rhe neck of an old Century bully dummy that I dress up in my bogu and I practice. Works well. Don't know why it's being touted as a waste of money, perhaps some morons think this app is a game. It's not. READ THE DESCRIPTION! ### 1/5 — Kendo Dummy *2011-02-10, version 1.1* Save your money. It sounds good, but big waste of time. Very limited use. ## Frequently asked questions about Kendo Dummy ### How does Kendo Dummy work? Kendo Dummy uses your iPhone or iPod's motion sensors to detect a bump. It provides a countdown with visual cues and then flashes green at a random interval, measuring your reaction time when you strike. ### What devices does Kendo Dummy support? Kendo Dummy is designed to work on iPhones and iPods. ### Is Kendo Dummy suitable for all ages? Kendo Dummy has an age rating of 4+, making it suitable for younger users interested in martial arts training. ### How often is Kendo Dummy updated? The latest version, 1.3.2, was released on October 17, 2020. While updates may not be frequent, the app is functional and stable for its intended purpose. ### Can I customize the training in Kendo Dummy? Yes, the setup screen allows you to adjust how much motion triggers a hit and vary the delay time before the green light appears. ### Does Kendo Dummy have ads? Kendo Dummy is a paid application and does not contain advertisements. ### What is the price of Kendo Dummy? Kendo Dummy is available for a one-time purchase of $0.99. ### Can Kendo Dummy be used for group training? Yes, Kendo Dummy can be used to train a class by displaying times and allowing users to compete for the best reaction time. ## Version history (last 1 release) ### 1.3.2 — 2020-10-17 This version updates a few things to get the app back on the Apple Store. I apologize for the brief interruption in availability! 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User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*