# Chalk Performance Training vs Body Lab System

The clearest difference is rating: Body Lab System at 5.0 against Chalk Performance Training's 3.8. Body Lab System also leads on device support (4 vs 2). Chalk Performance Training's advantage is ratings volume (164 vs 8). On price, update cadence, 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.

Body Lab System holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Chalk Performance Training has 164 ratings behind it against 8, so its average is the more settled of the two.

Chalk Performance Training ships an update every 5 months, Body Lab System every 3 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Chalk Performance Training | Body Lab System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (164 ratings)](https://appshunter.io/ios/app/chalk-performance-training/id6448561714/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/body-lab-system/id6761139653/reviews)** |
| Number of ratings | **164** | 8 |
| Positive reviews | 65.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 44 MB | 159 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Chalk Performance Training](https://appshunter.io/developer/1613097662) | [Nate Long Co LLC](https://appshunter.io/developer/1887943207) |

## What reviewers say

### 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


### Body Lab System

[App page](https://appshunter.io/ios/app/body-lab-system/id6761139653)

This app provides personalized workout programs and tracks your fitness journey. Monitor workouts, nutrition, habits, and measurements with coach support. Achieve goals with milestone badges and real-time messaging.

**Highlights:** Personalized workout programs, Workout and exercise video tracking, Meal and nutrition tracking, Daily habit monitoring, Goal setting and progress tracking, Real-time coach messaging, Body measurement and progress photo tracking, Wearable device integration

**Features:** Apple Wallet, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Chalk Performance Training free?

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

### Is Body Lab System free?

Body Lab System is free to download, with no in-app purchases.

### Which has better reviews, Chalk Performance Training or Body Lab System?

Body Lab System is rated higher. Chalk Performance Training averages 3.8 out of 5 from 164 ratings, while Body Lab System averages 5.0 from 8 ratings.

### Do Chalk Performance Training or Body Lab System have ads?

Neither Chalk Performance Training nor Body Lab System shows ads.

### Which is updated more often, Chalk Performance Training or Body Lab System?

Chalk Performance Training ships an update every 5 months, and Body Lab System every 3 months. Most recently, Chalk Performance Training was updated on October 15, 2026 and Body Lab System on October 7, 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.*