# USL vs GM Physical Performance

The clearest difference is in-app purchases: USL at none against GM Physical Performance's 3. GM Physical Performance's advantage is update cadence (every 3 days vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. GM Physical Performance sells 3 in-app purchases, starting at $8.99 per month. USL asks for nothing beyond the download.

USL ships an update every 9 months, GM Physical Performance every 3 days. The most recent releases landed on August 19, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | USL | GM Physical Performance |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 days** |
| Size | 77 MB | 10 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [appyness agency](https://appshunter.io/developer/1185323276) | [Maricau Germain](https://appshunter.io/developer/1768012176) |

## What reviewers say

### USL

[App page](https://appshunter.io/ios/app/usl-dunkerque/id6466818871)

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

**In-app purchases:** none


### GM Physical Performance

[App page](https://appshunter.io/ios/app/gm-physical-performance/id6761819096)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential Pack | $8.99 | per month |
| Performance Pack | $22.99 | per month |
| Elite Staff Pack | $34.99 | per month |


## Frequently asked questions

### Is USL free?

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

### Is GM Physical Performance free?

GM Physical Performance is free to download, with in-app purchases available.

### Do USL or GM Physical Performance have ads?

Neither USL nor GM Physical Performance shows ads.

### Which is updated more often, USL or GM Physical Performance?

USL ships an update every 9 months, and GM Physical Performance every 3 days. Most recently, USL was updated on August 19, 2026 and GM Physical Performance on September 11, 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.*