# Muscle & Motion vs The Client Notebook

The clearest difference is review sentiment: Muscle & Motion at 91% against The Client Notebook's 17%. Muscle & Motion also leads on rating (4.9 vs 1.9) and ratings volume (7.8K vs 9). The Client Notebook's advantage is in-app purchases (none vs 10) and iOS requirement (13.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Muscle & Motion sells 9 in-app purchases, starting at $14.99 per month. The Client Notebook asks for nothing beyond the download.

Muscle & Motion holds the better App Store score, 4.9 against 1.9. That said, the two scores are not equally well evidenced: Muscle & Motion has 7.8K ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 91% of Muscle & Motion's written reviews are positive against 17% of The Client Notebook's.

Muscle & Motion ships an update every 3 weeks, The Client Notebook every 2 weeks. The most recent releases landed on November 10, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Muscle & Motion | The Client Notebook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7.8K ratings)](https://appshunter.io/ios/app/muscle-and-motion-strength/id1302056349/reviews)** | [1.9 (9 ratings)](https://appshunter.io/ios/app/the-client-notebook/id1512597900/reviews) |
| Number of ratings | **7.8K** | 9 |
| Positive reviews | **90.7% of reviews** | 16.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 187 MB | 46 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Muscle & Motion LTD](https://appshunter.io/developer/1110670112) | [The Training Notebook, Inc.](https://appshunter.io/developer/505906868) |

## What reviewers say

### Muscle & Motion

[App page](https://appshunter.io/ios/app/muscle-and-motion-strength/id1302056349)

Explore detailed 3D animations of exercises to understand biomechanics and muscle engagement. This app helps users train smarter, reduce injury risk, and deepen their knowledge of human movement. It's ideal for visual learners seeking to grasp complex anatomy.

**Highlights:** Interactive 3D Anatomy Model, 3D Exercise Anatomy Library (1,200+ exercises), Educational Anatomy Videos, Customizable Workout Plans, Muscle and Joint Visualization, Common Mistake Identification

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual Monthly | $14.99 | per month |
| Professional Monthly | $24.99 | per month |
| Business Monthly | $88.99 | per month |
| Individual Yearly | $89.00 | per year |
| Yearly Subscription Bonus | $89.00 | per year |
| Individual Yearly (Free Trial) | $89.00 | per year |
| Pro Yearly (Free Trial) | $149.00 | per year |
| Professional Yearly | $149.00 | per year |
| Business Yearly | $499.00 | per year |

**What reviewers like**

- 🚀 Incredible depth of opportunity
- 👍 Detailed visual anatomy
- 👍 Muscular movement understanding
- 👍 Incredibly useful for newbies
- 👍 Excellent for whole body training

**What reviewers complain about**

- 🐛 Occasional crashes
- 🔍 Frustrating search and filtering issues
- 💰 Costly subscription
- 🔍 Outdated and potentially harmful information

**Reported bugs**

- Exercises not loading properly
- Inconsistent and slow loading
- Incorrect muscle labeling

**Requested features**

- Ability to zoom and move 3D body model
- Ability to create and save custom workouts
- Offline access on Mac
- Regular content updates


### The Client Notebook

[App page](https://appshunter.io/ios/app/the-client-notebook/id1512597900)

This app allows clients to access their workout plans, record personal progress, and communicate directly with their trainers. It provides a centralized hub for all training-related information, including body assessments and scheduled appointments.

**Highlights:** View planned workouts, Record personal workouts, Track body assessments, Store progress photos, View appointments, In-app trainer messaging

**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 The Client Notebook free?

The Client Notebook is free to download, with no in-app purchases.

### Which has better reviews, Muscle & Motion or The Client Notebook?

Muscle & Motion is rated higher. Muscle & Motion averages 4.9 out of 5 from 7.8K ratings, while The Client Notebook averages 1.9 from 9 ratings.

### Do Muscle & Motion or The Client Notebook have ads?

Neither Muscle & Motion nor The Client Notebook shows ads.

### Which is updated more often, Muscle & Motion or The Client Notebook?

Muscle & Motion ships an update every 3 weeks, and The Client Notebook every 2 weeks. Most recently, Muscle & Motion was updated on November 10, 2026 and The Client Notebook on November 3, 2026.

---

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