# Top MZM vs CDDK

The clearest difference is update cadence: CDDK at every 3 months against Top MZM's every 13 months. Top MZM's advantage is iOS requirement (11.0 vs 15.6). 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.

Top MZM ships an update every 13 months, CDDK every 3 months. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Top MZM | CDDK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Size | 42 MB | 45 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Zhongxinyou M2M Technology Co., Ltd.](https://appshunter.io/developer/1489982535) | [深圳市创艺慧云信息有限公司](https://appshunter.io/developer/1069607179) |

## What reviewers say

### Top MZM

[App page](https://appshunter.io/ios/app/top-mzm/id1557718145)

**Features:** macOS Compatibility

**In-app purchases:** none


### CDDK

[App page](https://appshunter.io/ios/app/cddk/id1640293218)

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

**In-app purchases:** none


## Frequently asked questions

### Is Top MZM free?

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

### Is CDDK free?

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

### Do Top MZM or CDDK have ads?

Neither Top MZM nor CDDK shows ads.

### Which is updated more often, Top MZM or CDDK?

Top MZM ships an update every 13 months, and CDDK every 3 months. Most recently, Top MZM was updated on October 6, 2026 and CDDK on October 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.*