# 芯妙 vs CDDK

The clearest difference is update cadence: 芯妙 at every 3 weeks against CDDK's every 3 months. 芯妙 also leads on iOS requirement (9.0 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.

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

## The numbers

| Metric | 芯妙 | CDDK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 63 MB | 45 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenyang Rong Kuo Electronic product Co., Ltd.](https://appshunter.io/developer/1431722651) | [深圳市创艺慧云信息有限公司](https://appshunter.io/developer/1069607179) |

## What reviewers say

### 芯妙

[App page](https://appshunter.io/ios/app/id1528667403)

**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 芯妙 free?

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

### Is CDDK free?

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

### Do 芯妙 or CDDK have ads?

Neither 芯妙 nor CDDK shows ads.

### Which is updated more often, 芯妙 or CDDK?

芯妙 ships an update every 3 weeks, and CDDK every 3 months. Most recently, 芯妙 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.*