# Muscle & Motion vs S.A.M. Posture Print

The clearest difference is review sentiment: Muscle & Motion at 77% against S.A.M. Posture Print's 0%. Muscle & Motion also leads on rating (4.9 vs 1.3) and ratings volume (681 vs 3). S.A.M. Posture Print's advantage is in-app purchases (none vs 4) and iOS requirement (9.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Muscle & Motion sells 3 in-app purchases, starting at $15.00 per month. S.A.M. Posture Print asks for nothing beyond the download.

Muscle & Motion holds the better App Store score, 4.9 against 1.3. That said, the two scores are not equally well evidenced: Muscle & Motion has 681 ratings behind it against 3, 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 0% of S.A.M. Posture Print's.

Muscle & Motion ships an update monthly, S.A.M. Posture Print every 6 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Muscle & Motion | S.A.M. Posture Print |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (681 ratings)](https://appshunter.io/ios/app/muscle-and-motion-posture/id1199500066/reviews)** | [1.3 (3 ratings)](https://appshunter.io/ios/app/sam-posture-print/id1261937892/reviews) |
| Number of ratings | **681** | 3 |
| Positive reviews | **76.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Freemium | **Free** |
| Size | 193 MB | 2 MB |
| Requires iOS | 18.0 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Muscle & Motion LTD](https://appshunter.io/developer/1110670112) | [Spinal Analysis Machine, LLC](https://appshunter.io/developer/1261937891) |

## What reviewers say

### Muscle & Motion

[App page](https://appshunter.io/ios/app/muscle-and-motion-posture/id1199500066)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Full Access | $15.00 | per month |
| Yearly Full Access | $89.00 | per year |
| Yearly Subscription Bonus | $89.00 | per year |

**What reviewers like**

- 🚀 Animated anatomy magic
- 👍 Very educational
- 👍 Great body of work
- 👍 Brilliant and very helpful
- 👍 Fabulous and makes you better

**What reviewers complain about**

- 🐛 Doesn't work on iOS 18.3
- 💰 Very expensive

**Reported bugs**

- Paid subscription not working, only free version available
- Login issues

**Requested features**

- Add Russian language
- Add Spanish language


### S.A.M. Posture Print

[App page](https://appshunter.io/ios/app/sam-posture-print/id1261937892)

This app works with a special machine to analyze and document a person's posture. It generates a PDF report explaining the findings, which can be printed or emailed. The app is designed for quick use during health screenings.

**Highlights:** Posture grid analysis, PDF report generation, Wireless printing, Emailing reports, Editable PDF and email content, Multi-language support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Muscle & Motion free?

Muscle & Motion is free to download, with in-app purchases available.

### Is S.A.M. Posture Print free?

S.A.M. Posture Print is free to download, with no in-app purchases.

### Which has better reviews, Muscle & Motion or S.A.M. Posture Print?

Muscle & Motion is rated higher. Muscle & Motion averages 4.9 out of 5 from 681 ratings, while S.A.M. Posture Print averages 1.3 from 3 ratings.

### Do Muscle & Motion or S.A.M. Posture Print have ads?

Neither Muscle & Motion nor S.A.M. Posture Print shows ads.

### Which is updated more often, Muscle & Motion or S.A.M. Posture Print?

Muscle & Motion ships an update monthly, and S.A.M. Posture Print every 6 weeks. Most recently, Muscle & Motion was updated on November 6, 2026 and S.A.M. Posture Print on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*