Comparison

Muscle & Motion vs Goniometer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Muscle & Motion

Explore the anatomy and biomechanics of posture with interactive 3D models. Understand muscular patterns, identify common faults, and learn corrective exercises to improve alignment and reduce pain. Ideal for professionals and individuals seeking to enhance their understanding of human movement.

Highlights
  • 3D Postural Analysis Library
  • Corrective Exercise Library
  • Biomechanical Principles Visualization
  • Muscle Activation in 3D
  • Identification of Postural Faults
  • Client/Patient Education Tools
Read full description

Understand posture from the inside out. The Posture app by Muscle & Motion turns your device into a powerful 3D learning platform that reveals the anatomy, biomechanics, and muscular patterns behind good (and poor) posture. Explore common postural faults, watch muscles activate in 3D, and learn how alignment influences movement, performance, and pain. Whether you’re a therapist, trainer, movement educator, student, or someone working to improve your own posture, this app helps you see what’s really happening beneath the surface. Why Physical Therapists, clinicians & movement professionals love it - Makes complex posture concepts easy to understand through clear 3D animations - Shows exactly which muscles are overactive, underactive, tight, or lengthened - Helps explain posture to clients and patients far better than static images - Reveals the biomechanics behind common faults like rounded shoulders, forward head, swayback, lordosis, kyphosis, and more - Provides corrective exercises and movement strategies that professionals can use immediately Key Features • 3D Postural Analysis Library Understand why issues like kyphosis, lordosis, or flat back develop. The app uses clear 3D visuals to show how muscular imbalances create each postural pattern, and provides guided exercises that can help you correct and improve them over time. • Corrective Exercise Library Access targeted strengthening and mobility exercises for improving alignment. • Biomechanical Principles Made Simple See how the brain, muscles, and joints coordinate to maintain posture. Learn about load distribution, joint alignment, center of gravity, and functional stability, all visualized in 3D. Who is this app for? The Posture app is built for anyone who wants to understand and improve posture, including: - Physiotherapists, chiropractors & rehab professionals - Personal trainers & corrective exercise specialists - Yoga, Pilates & movement teachers - Kinesiology and physical therapy students - University and college instructors - Strength coaches & athletic trainers - Massage therapists & bodyworkers - Individuals working on posture, mobility, or pain reduction Use it to assess posture, teach alignment, choose corrections, create programs, or simply deepen your understanding of human movement. Free Access & Subscriptions You can download the app and explore part of the posture content for free, including sample 3D lessons and corrective exercises. To unlock the full library (including all posture analyses, 3D anatomy content, corrective exercises, and biomechanics videos) you can upgrade with an in-app subscription: - Subscriptions give you full access to all videos, lessons, and 3D content 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 settings. You can manage or cancel your subscription at any time in Settings > Apple ID > Subscriptions on your device. For full details: 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.

About

Goniometer

This tool accurately measures range of motion for patients, offering a faster and more precise alternative to traditional methods. It features pre-populated data fields for every joint, streamlining the intake process and allowing more time for patient care.

Highlights
  • Accurate ROM measurement
  • Dual-axis functionality
  • Pre-populated joint data
  • Faster than bubble inclinometers
  • Streamlined patient intake
Features
Read full description

The Goniometer Pro quickly and accurately measures ROM of a patient. This tool is useful for measuring back ROM, improving the speed and quality of measurement when compared with a bubble inclinometer. Every joint in the body contains prepopulated data fields for an efficient intake process, so you can focus on patient recovery, less time taking notes, and more time eating lunch. Disclaimer: This app is not intended to replace a doctor's assessment or advice in making any medical decisions. Seek a doctor’s advice in addition to using this app and before asking any medical decisions.

Screenshots

Muscle & Motion4 screens
Goniometer3 screens

Verdict

The call

The clearest difference is price: Muscle & Motion at Free against Goniometer's $9.99. Muscle & Motion also leads on review sentiment (77% vs 33%) and rating (4.9 vs 3.0). Goniometer's advantage is in-app purchases (none vs 4) and iOS requirement (12.0 vs 18.0). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Muscle & Motion is free to download; Goniometer costs $9.99 up front. Muscle & Motion sells 3 in-app purchases, starting at $15.00 per month. Goniometer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Muscle & Motion holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: Muscle & Motion has 681 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 77% of Muscle & Motion's written reviews are positive against 33% of Goniometer's.

Scorecard7 real differences · 3 level
Muscle & Motion versus Goniometer: the parameters behind the verdict, then further details
ParameterMuscle & MotionGoniometer
PriceFree — better$9.99
Rating4.9 (681 ratings) — better3.0 (8 ratings)
Positive reviews76.7% of reviews — better33.3% of reviews
Number of ratings681 — better8
Update frequencyMonthly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium — betterPaid
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.012.0 — better
Further details — not scored
Size193 MB50 MB
Age rating17+4+
DeveloperMuscle & Motion LTDAvvi LLC

Customer experience

Muscle & Motion

All ratings681 ratings
Positive96.9%
Neutral1.3%
Negative1.8%
Written reviews60 reviews
Positive76.7%
Neutral3.3%
Negative20.0%

Goniometer

All ratings8 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews9 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Bugs and requests

Muscle & Motion

Reported bugs

2 issues
  • Paid subscription not working, only free version available
  • Login issues

Requested features

2 requests
  • Add Russian language
  • Add Spanish language

Goniometer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Muscle & Motion

Subscriptions3
  • Monthly Full Access$15.001 Month
  • Yearly Full Access2 variants$89.001 Year
  • Yearly Subscription Bonus1 Year trial$89.001 Year
None

Goniometer

No in-app purchases

Questions

Is Muscle & Motion free?
Muscle & Motion is free to download, with in-app purchases available.
Is Goniometer free?
Goniometer costs $9.99, with no in-app purchases.
Which has better reviews, Muscle & Motion or Goniometer?
Muscle & Motion is rated higher. Muscle & Motion averages 4.9 out of 5 from 681 ratings, while Goniometer averages 3.0 from 8 ratings.
Do Muscle & Motion or Goniometer have ads?
Neither Muscle & Motion nor Goniometer shows ads.

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