# Z vs RED control

The clearest difference is update cadence: Z at every 2 months against RED control's every 4 months. Z also leads on iOS requirement (9.0 vs 13.0). 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, RED control every 4 months. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Z | RED control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 12 MB | 32 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zoomlion Heavy Industry Science and Technology Co., Ltd.](https://appshunter.io/developer/1042192738) | [CAREL INDUSTRIES S.p.A.](https://appshunter.io/developer/1797037609) |

## What reviewers say

### Z

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

**Features:** macOS Compatibility

**In-app purchases:** none


### RED control

[App page](https://appshunter.io/ios/app/red-control/id6471656241)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Z free?

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

### Is RED control free?

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

### Do Z or RED control have ads?

Neither Z nor RED control shows ads.

### Which is updated more often, Z or RED control?

Z ships an update every 2 months, and RED control every 4 months. Most recently, Z was updated on October 3, 2026 and RED control on October 2, 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.*