# Z vs Hussmann Controls

The clearest difference is update cadence: Z at every 2 months against Hussmann Controls's every 9 months. Z also leads on iOS requirement (9.0 vs 15.1). On price, ads, 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.

Z ships an update every 2 months, Hussmann Controls every 9 months. Both last shipped on October 3, 2026.

## The numbers

| Metric | Z | Hussmann Controls |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Size | 12 MB | 39 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zoomlion Heavy Industry Science and Technology Co., Ltd.](https://appshunter.io/developer/1042192738) | [Hussmann Corporation](https://appshunter.io/developer/1305933190) |

## What reviewers say

### Z

[App page](https://appshunter.io/ios/app/z-asset/id1490957063)

**Features:** macOS Compatibility

**In-app purchases:** none


### Hussmann Controls

[App page](https://appshunter.io/ios/app/hussmann-controls/id1501877672)

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

**In-app purchases:** none


## Frequently asked questions

### Is Z free?

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

### Is Hussmann Controls free?

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

### Do Z or Hussmann Controls have ads?

Neither Z nor Hussmann Controls shows ads.

### Which is updated more often, Z or Hussmann Controls?

Z ships an update every 2 months, and Hussmann Controls every 9 months. Most recently, Z was updated on October 3, 2026 and Hussmann Controls on October 3, 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.*