# Joint Locks by Rory Miller

> Learn to improvise joint locks under pressure with video lessons. (iPhone/iPad app by YMAA Publication Center, Inc..)

- Source: https://appshunter.io/ios/app/joint-locks-by-rory-miller/id927960246 (this page in markdown: same URL + `.md`)
- Developer: [YMAA Publication Center, Inc.](https://appshunter.io/developer/891633332)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 16 MB
- Languages: American English
- Released: 2014-10-28
- Data updated: 2026-08-21
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/joint-locks-by-rory-miller/id927960246/reviews.md

## What is Joint Locks by Rory Miller?

Learn to Improvise Joint Locks Under Pressure with Rory Miller.
Same videos as the Joint Locks DVD for much less!
Video Chapters:
• Intro
• Principles
• Hinge Joints
• Ball and Socket Joints
• Gliding Joints
• Fingers
• Principles Review
• Lock Flow Drill
• Escaping Locks
• Conclusion
In this 60-minute video app, Rory Miller makes the case that the problem is not with the locks themselves, but with our teaching methods.  A principles-based approach allows relative beginners to improvise joint locks with one hour of training, something that many traditional approaches have failed to do with hundreds of hours.
This app is available for free download with sample videos, and offers a single in-app purchase to access these joint lock lessons for the lowest possible cost.
Joint locks are widely regarded as one of the most versatile physical tools-- they can move, immobilize, submit or severely injure a threat.  They are also justifiably regarded as one of the more difficult of martial arts skills to implement in real life.  
Joint locks are NOT primary self-defense techniques.  If you are in a position that requires self-defense you are justified in and likely need a higher level of force.  However, if your job requires controlling violent people with minimal injury you must be good at joint locks and you must be able to improvise them under pressure.
Rory Miller is a writer and teacher living peacefully in the Pacific Northwest, USA.
He has served for seventeen years in corrections as an officer and sergeant working maximum security, booking and mental health; leading a tactical team; and teaching subjects ranging from Defensive Tactics and Use of Force to First Aid and Crisis Communications with the Mentally Ill. For fourteen months he was an advisor to the Iraqi Corrections System. He received a BS degree in Psychology; served in the National Guard as a Combat Medic (91A/B); earned college varsities in judo and fencing, and received a mokuroku in jujutsu.
Mr. Miller is the author of several award-winning books and DVDs, including “Meditations on Violence”, “Facing Violence”, “Scaling Force”, and “Conflict Communications”.
As an experienced martial artist and veteran correction officer, Rory Miller distills what he learned from jailhouse brawls, tactical operations, and ambushes to explore the differences between martial arts and the subject martial arts were designed to deal with: Violence.
In his work, Miller introduces the myths, metaphors and expectations that most martial artists have about what they will ultimately learn in their dojo. This is then compared with the complexity of the reality of violence.
Thank you for downloading our app! We are striving to make the best possible video apps available.

Sincerely,
The team at YMAA Publication Center, Inc.
(Yang’s Martial Arts Association)

CONTACT: apps@ymaa.com
VISIT: www.YMAA.com
WATCH: www.YouTube.com/ymaa

## Key features

- Principles-based joint lock training
- Improvisation under pressure
- Video chapters covering various joint types
- Lock flow drills
- Escaping joint locks
- Suitable for beginners

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock everything | $9.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/joint-locks-by-rory-miller/id927960246/reviews.md

### 5/5 — This and his INfighting app are great

*2019-03-12*

Rory always teaches in a clear and easy to understand manner. In this app, he explains joint locks so simply, you’ll wonder how it seemed so difficult. Similar to his INfighting app, he demystifies the topic, gives some real world examples, and personally demonstrates.

### 5/5 — Good conceptual instructional

*2017-12-04*

This app is more conceptual than technique oriented and is probably better for intermediate and advanced practitioners. If you’re a beginner and have no experience with joint locks, you might be overwhelmed as there are limited technical details on how to perform any certain lock. It’s more about understanding the mechanics and flowing and improvising locks using what you know. I agree that in a real situation these locks will look a bit uglier in execution than in training but if you have a sloppy starting point to begin with, it’s going to be that much sloppier under pressure and you’re going to have a difficult time finishing anything. I recommend researching 1 or 2 techniques from each type of lock he describes on your own before immersing yourself fully in this content. You’ll get way more out of this with a basic knowledge of some techniques you can work with. This is entirely standing joint locks. If you’re looking for ground fighting, this isn’t the app for you.

### 5/5 — Really interesting & informative

*2014-10-27*

I hope I'm never in a situation where I have to use joint locks, but you never know...I'm glad that Rory Miller did this so I would have some idea how to use joint locks.  It's easy to understand and follow.  His approach shows beginners, like myself, how to improve joint locks to use in a "situation."  Thanks Rory!

## Frequently asked questions about Joint Locks by Rory Miller

### What is Joint Locks by Rory Miller?

Joint Locks by Rory Miller is a video application designed to teach users how to improvise joint locks under pressure. It focuses on a principles-based approach to make these techniques accessible even to relative beginners.

### Is Joint Locks by Rory Miller free to download?

Yes, Joint Locks by Rory Miller is available for free download and includes sample videos. To access all the joint lock lessons, a single in-app purchase is required.

### What kind of joint locks are covered in the app?

The app covers various types of joints, including hinge joints, ball and socket joints, and gliding joints. It also includes specific lessons on finger locks and principles review.

### Who is Rory Miller?

Rory Miller is an experienced martial artist and former correction officer with seventeen years of experience in maximum security environments. He is also the author of several award-winning books on violence and conflict.

### Does Joint Locks by Rory Miller have ads?

Yes, Joint Locks by Rory Miller contains advertisements. Users can unlock all content through a single in-app purchase.

### What is the age rating for Joint Locks by Rory Miller?

The app has an age rating of 4+, making it suitable for a wide range of users interested in learning about joint lock techniques.

### What devices support Joint Locks by Rory Miller?

Joint Locks by Rory Miller is supported on iPhone, iPad, and iPod devices, offering flexibility for users across Apple's mobile ecosystem.

### How often is Joint Locks by Rory Miller updated?

The app was last updated on January 16, 2023, indicating a commitment to maintaining and potentially improving the application over time.

## Version history (last 4 releases)

### 1.0.3 — 2023-01-16

App updated to the latest operating system, bugs fixed, crashes resolved. Please leave 5-star review to help launch this new app. Free sample videos. This app contains the entire video contents for a fraction of the price, with a single purchase per program. 

We ask for your optional email to contact you about app improvements and other YMAA.com news. You can click past the email request. This app is made directly from the author and publisher. Thanks for your support!

### 1.0.2 — 2019-03-26

Update for latest OS in 2019. Free sample videos and single in-app purchase for full-length videos, detailed instruction, follow-along workout. Streaming/download.

### 1.0.1 — 2016-10-13

Update with options to stream or download videos, and much smaller app size!

### 1.0 — 2014-10-25

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*