# Performance Dynamics vs Body Rock Performance

The clearest difference is device support: Body Rock Performance at 2 against Performance Dynamics's —. Performance Dynamics's advantage is iOS requirement (14.0 vs 16.4). On price, update cadence 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.

Performance Dynamics ships an update every 9 months, Body Rock Performance every 7 months. The most recent releases landed on September 7, 2026 and August 9, 2026 respectively.

## The numbers

| Metric | Performance Dynamics | Body Rock Performance |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 9 months | **Every 7 months** |
| Size | 55 MB | 157 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [TeamUp Sports](https://appshunter.io/developer/1449504626) | [Legitfit Limited](https://appshunter.io/developer/1550159231) |

## What reviewers say

### Performance Dynamics

[App page](https://appshunter.io/ios/app/performance-dynamics/id6447365555)

**In-app purchases:** none


### Body Rock Performance

[App page](https://appshunter.io/ios/app/body-rock-performance/id6479611977)

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

**In-app purchases:** none


## Frequently asked questions

### Is Performance Dynamics free?

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

### Is Body Rock Performance free?

Body Rock Performance is free to download, with no in-app purchases.

### Which is updated more often, Performance Dynamics or Body Rock Performance?

Performance Dynamics ships an update every 9 months, and Body Rock Performance every 7 months. Most recently, Performance Dynamics was updated on September 7, 2026 and Body Rock Performance on August 9, 2026.

---

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