# Muscle & Motion vs Posture Correction

The clearest difference is review sentiment: Muscle & Motion at 100% against Posture Correction's 68%. Muscle & Motion also leads on rating (5.0 vs 4.7) and update cadence (every 2 months vs every 6 months). Posture Correction's advantage is ratings volume (72 vs 2) and iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Muscle & Motion sells 1 one-off in-app purchase and Posture Correction sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Muscle & Motion holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Posture Correction has 72 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Muscle & Motion's written reviews are positive against 68% of Posture Correction's.

Muscle & Motion ships an update every 2 months, Posture Correction every 6 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Muscle & Motion | Posture Correction |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/muscle-and-motion-kyphosis/id1487430168/reviews)** | [4.7 (72 ratings)](https://appshunter.io/ios/app/posture-correction-tech-neck/id1494771315/reviews) |
| Number of ratings | 2 | **72** |
| Positive reviews | **100.0% of reviews** | 68.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 66 MB | 35 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Muscle & Motion LTD](https://appshunter.io/developer/1110670112) | [AppsGO DOO](https://appshunter.io/developer/1494771314) |

## What reviewers say

### Muscle & Motion

[App page](https://appshunter.io/ios/app/muscle-and-motion-kyphosis/id1487430168)

This app offers an 8-week program designed to treat and prevent rounded back and kyphosis. It provides daily, expertly curated exercises with full explanations to improve posture and establish postural control. Suitable for children, youth, and adults seeking professional and effective posture correction.

**Highlights:** 8-week corrective program, Daily exercises with explanations, Posture improvement, Postural control establishment, Expert-designed treatment, Suitable for all ages

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Subscription | $14.99 | one-time |


### Posture Correction

[App page](https://appshunter.io/ios/app/posture-correction-tech-neck/id1494771315)

Improve your posture and relieve neck and back pain with guided exercises and stretches. This app helps correct forward head posture caused by prolonged screen time, offering simple workouts without equipment. Achieve better alignment for overall health and well-being.

**Highlights:** Guided posture correction exercises, Neck pain relief workouts, Back pain prevention exercises, Stretches for forward head posture, 5-minute guided workouts, No equipment required

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Silver | $2.99 | per month |
| 1 Month Subscription | $2.99 | per month |
| 1 Year Subscription | $14.99 | per year |
| Gold Subscription | $29.99 | per year |
| Platinum member | $40.99 | one-time |


## Frequently asked questions

### Is Muscle & Motion free?

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

### Is Posture Correction free?

Posture Correction is free to download, with in-app purchases available.

### Which has better reviews, Muscle & Motion or Posture Correction?

Muscle & Motion is rated higher. Muscle & Motion averages 5.0 out of 5 from 2 ratings, while Posture Correction averages 4.7 from 72 ratings.

### Do Muscle & Motion or Posture Correction have ads?

Neither Muscle & Motion nor Posture Correction shows ads.

### Which is updated more often, Muscle & Motion or Posture Correction?

Muscle & Motion ships an update every 2 months, and Posture Correction every 6 months. Most recently, Muscle & Motion was updated on November 3, 2026 and Posture Correction on November 3, 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.*