Understand every exercise from the inside out
Strength Training by Muscle & Motion is powered by a team of physiotherapists, movement experts, and professional animators. We turn your device into a visual strength-training lab and show you exactly which muscle structures are working, so you can understand the anatomy and biomechanics of the exercise, and train smarter while reducing injury risk.
Made for personal trainers, strength coaches, therapists, students, and dedicated lifters, this app connects what you feel in the gym with what’s really happening in the body.
Designed for visual learners
If you learn best by seeing, this app is made for you.
Why trainers, coaches & students love it
- Makes complex anatomy easy to understand through clear 3D animations
- Shows exactly which muscles and joints are involved in each exercise
- Reveals common mistakes so you can coach better form
- Explains concepts far better than static images or textbooks
Backed by thousands of 5-star ratings and trusted by movement professionals worldwide.
Instead of static diagrams, you get animated 3D views of real lifts: muscles slide, shorten and lengthen as the movement happens, making it much easier to remember which structures are doing what, and why it matters
Key features:
• Interactive 3D Anatomy Model
Rotate, zoom, and explore every muscle, joint, and bone for a deeper understanding of human movement.
• Access to 3D Exercise Anatomy Library (1,200+ exercises, updated weekly)
Comprehensive library of science-based exercise videos, each with full anatomical analysis and common mistakes to avoid. See prime movers, synergists, stabilizers and antagonists highlighted with clear color-coding, and learn how to target or de-emphasize specific muscles by changing stance, range, or grip.
• Educational Videos
Discover a range of videos designed to make learning anatomy easy and engaging. From core fundamentals to advanced mechanics.
• Workout Plans
Create & assign customized workouts
What our users say
“An absolute must for understanding movement and the anatomy behind it! It’s like watching under the skin.”
“I’ve finally found an app that helps me prevent injuries by showing exactly what not to do!”
“This app makes complex anatomy simple and has helped me become a more effective trainer for my clients.”
Who is this app for?
Strength Training by M&M is built for anyone who wants to train and teach with confidence:
- Personal trainers & strength coaches
- Physical therapists, chiropractors & rehab professionals
- Pilates, yoga & movement teachers
- Bodybuilders, powerlifters & fitness enthusiasts
- Kinesiology, physiotherapy & sports-science students
- University and college instructors who teach exercise anatomy/biomechanics
Use it to prepare sessions, design programs, teach classes, or deepen your own understanding of lifting mechanics.
Free access & subscriptions
You can download the app and start learning with a free tier that unlocks a portion of the content so you can explore the 3D model and try sample exercises.
To access the full library of exercises, 3D anatomy content, and all workout-building tools, you can upgrade with an in-app subscription:
Subscriptions give you full access to all videos, exercises, workouts, and the 3D model for the duration of your plan.
Subscriptions auto-renew unless you turn off auto-renew at least 24 hours before the end of the current period in your Apple ID account settings.
You can manage or cancel your subscription at any time in Settings > Apple ID > Subscriptions on your device.
For full details, please see:
Privacy Policy: https://www.muscleandmotion.com/privacy/
Terms of Use: https://www.muscleandmotion.com/terms-of-use/
Support
Have a question, feature request or need help with your subscription?
Our team is happy to help at info@muscleandmotion.com.
I’ve been looking at M&M for years. I’m 76 now, have worked out regularly for a little more than 20 years, and wouldn’t be in such good shape now without an understanding of anatomy. If you’re young, please hear me. If you want to have a healthy strong body by the time you hit this age, and be able to maintain functional strength that departs as you age, be sure to incorporate anatomy. Without it, you will make incorrect choices about what your body needs, and likely hurt yourself. It’s that simple. M&M provides all you need to know to prevent the nasty cycle of “minor injury isn’t handled correctly, so re-injury keeps you down longer, and those re-injuries morph into bigger injuries because you’re spending more time recovering than you are working out, and the amount and rate of muscle mass loss increase because aging causes one to lose muscle mass fast”. If you’re a senior and just beginning body care, good for you! But you need to understand anatomy so you understand the goals—from a mechanical, structural POV. Does this sound like a lot of work? Sure it does, because it is a lot of work. M&M makes it all almost easy. Look up a muscle. Look up an exercise. Look up just about anything associated with this sort of body care, and M&M will help you. I’m a former 350 lb morbidly obese person, who didn’t do a bit of regular exercise until I was 52. I know what it feels like to have a dangerously dysfunctional body. I can report that struggling with an unhealthy body is THE REAL hard work. I was young when overweight and out of shape with no understanding of what happens to an aging body. If I hadn’t entered this world of health, I’d be in very sad shape, emotionally as well as physically. And I could not have accomplished what I have without M&M.
61 year old male/23 major surgeries / told I would never walk again and be in a wheelchair
L.G.Monster
30 plus years ago I was a very serious gym rat 178.5 lbs, 8.5 % body fat, 320 bench for 2, 465 deadlift for multiple reps, I only had a 315 squat for reps. I’m tall 6’2”. I ended up with a very rare disease which eats at my body. I gave up on life in general. God touched me. It took a good year to relearn how to walk. I’m still struggling. My wife showed me your app. We started back to the gym. With the reassurance of your app 2.5 years later. I maxed out at 245 lbs on the bench, I benched 225 for a “total “ of 14 reps, my vertebrae is fused in 5 places in my lower back and 3 in my neck so I’m very cautious of deadlifts but I do 155, squat 95 lbs. I mainly use machines for my legs. Anyway, your app has changed my life. My wife and I enjoy going to the gym regularly. My body fat is way down and my muscle mass is way up for my age and physical abilities. When I started working out again I was barely lifting any weight whatsoever. We / I have come a very long way and your app inspires me daily. I thank you and God for blessing me. And I’m constantly baffling my many specialists doctors all the time. Sincerely David g.
Incredible
KyleM
I’ve only just begun exploring the depth of opportunity this app has to offer; I could not be more excited. I love fitness, and I love to teach, so it’s no surprise that after my Army days were complete, I found my passion and life’s specialty as a personal trainer. I’ll admit I’ve never been as excited as I am for what this particular app has to offer. It addresses so many different concerns that anybody might seek out personal trainer to help address. I feel very prepared to help clients through anything, now knowing that I have this as such a good resource. Not to mention the personal discoveries I have made simply by observing the 3-D anatomy at work. This is just a fantastic app and I look forward to being a lifelong customer. If that was an option, I would’ve selected it in a heartbeat. Thank you guys for the hard work. I promise you have already made major impacts on many people.
Developer Response
Wow! Your enthusiasm is truly inspiring! We're honored to be part of your journey as a personal trainer, and it’s amazing to hear how our app is helping you both professionally and personally.Thank you for your support, and we look forward to being a lifelong resource for you. Keep making an impact! 💪🔥
One of the best Anatomy apps for strength
Open Minded and Looker of New Creativity
I have found nothing like this app that takes an exercise and shows the muscles at the upper and deeper levels of my body. It is very educational and has shined some unobvious weaknesses that I have to compensate for through injuries I have. Without this app I would not have understood muscles and areas of my body that were affected by exercises I was doing. If you are a diehard exercise person that wants to improve your health. This is a must have application it doesn’t require a medical degree. It talks and exercise language and shows live working example and animated example of the muscles being used and how to do the exercise in the gym. Try this you’ll love it.
Dear members,
This update includes bug fixes and general UI improvements.
We recommend updating to the latest version for the best experience.
Enjoy,
Strength Training Team, M&M
Version 3.4.2
The developer, Muscle & Motion LTD, 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 Linked to You
The following data may be collected and linked to your identity:
Contact Info
User Content
Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
