# Muscle Mastery vs Chalk Performance Training

The clearest difference is rating: Muscle Mastery at 5.0 against Chalk Performance Training's 3.8. Muscle Mastery also leads on review sentiment (100% vs 65%) and update cadence (every 2 months vs every 5 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Muscle Mastery holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 95 and 165 respectively. Written reviews point the same way: 100% of Muscle Mastery's written reviews are positive against 65% of Chalk Performance Training's.

Muscle Mastery ships an update every 2 months, Chalk Performance Training every 5 months. The most recent releases landed on October 6, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Muscle Mastery | Chalk Performance Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (95 ratings)](https://appshunter.io/ios/app/muscle-mastery/id1581495624/reviews)** | [3.8 (165 ratings)](https://appshunter.io/ios/app/chalk-performance-training/id6448561714/reviews) |
| Number of ratings | 95 | **165** |
| Positive reviews | **100.0% of reviews** | 65.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 159 MB | 44 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [L8R Lifestyle, LLC](https://appshunter.io/developer/1581495626) | [Chalk Performance Training](https://appshunter.io/developer/1613097662) |

## What reviewers say

### Muscle Mastery

[App page](https://appshunter.io/ios/app/muscle-mastery/id1581495624)

This app helps users achieve their health and fitness goals with personalized workout and nutrition plans. It offers direct access to certified coaches for support and accountability, along with tools to track progress and daily habits.

**Highlights:** Personalized training plans with video instruction, Workout and progress tracking, Nutrition and macro tracking, Direct in-app messaging with coaches, Habit tracking and accountability, Integration with wearable devices

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Chalk Performance Training

[App page](https://appshunter.io/ios/app/chalk-performance-training/id6448561714)

Access science-based workouts for any fitness level, at home or in the gym. Track your progress, join a supportive global community, and receive expert guidance to achieve your health and fitness goals.

**Highlights:** At-home and gym workout programs, Beginner, intermediate, and advanced options, Exclusive workout library, Video demonstrations and instructions, Progress tracking and performance analysis, Global fitness community and discussions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient and easy to use
- 🔒 Robust security features
- 👍 Variety of workout programs
- 💡 Helpful nutrition resources
- 🚀 Seamless workout tracking

**What reviewers complain about**

- 🐛 Buggy app functionality
- 🔒 Difficult to cancel subscription
- 👎 Poor customer service
- 🐛 Inconsistent user experience
- 👎 Confusing navigation

**Reported bugs**

- Timer resets when switching apps
- Inability to log completed sets
- Workout history not transferring from previous app
- Difficulty creating custom workouts

**Requested features**

- Add option to disable audio during workouts
- Improve ability to enter weights and reps manually
- Provide more customization options for workouts
- Implement seamless sync across devices
- Add support for Apple Watch integration


## Frequently asked questions

### Is Muscle Mastery free?

Muscle Mastery is free to download, with no in-app purchases.

### Is Chalk Performance Training free?

Chalk Performance Training is free to download, with no in-app purchases.

### Which has better reviews, Muscle Mastery or Chalk Performance Training?

Muscle Mastery is rated higher. Muscle Mastery averages 5.0 out of 5 from 95 ratings, while Chalk Performance Training averages 3.8 from 165 ratings.

### Do Muscle Mastery or Chalk Performance Training have ads?

Neither Muscle Mastery nor Chalk Performance Training shows ads.

### Which is updated more often, Muscle Mastery or Chalk Performance Training?

Muscle Mastery ships an update every 2 months, and Chalk Performance Training every 5 months. Most recently, Muscle Mastery was updated on October 6, 2026 and Chalk Performance Training on October 23, 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.*