# ZL Performance vs Marr Strength

The clearest difference is ads: ZL Performance at none against Marr Strength's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ZL Performance | Marr Strength |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | Monthly |
| Size | 190 MB | 84 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZL Performance LLC](https://appshunter.io/developer/1544138959) | [Marr Strength & Conditioning, LLC](https://appshunter.io/developer/1679355485) |

## What reviewers say

### ZL Performance

[App page](https://appshunter.io/ios/app/zl-performance/id1544138957)

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

**In-app purchases:** none


### Marr Strength

[App page](https://appshunter.io/ios/app/marr-strength/id6447523527)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is ZL Performance free?

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

### Is Marr Strength free?

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

### Do ZL Performance or Marr Strength have ads?

Marr Strength shows ads; ZL Performance does not.

### Which is updated more often, ZL Performance or Marr Strength?

ZL Performance ships an update monthly, and Marr Strength monthly. Most recently, ZL Performance was updated on September 14, 2026 and Marr Strength on September 10, 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.*