# CDDK vs lightthings

The clearest difference is update cadence: CDDK at every 3 months against lightthings's every 14 months. lightthings's advantage is iOS requirement (13.0 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.

CDDK ships an update every 3 months, lightthings every 14 months. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | CDDK | lightthings |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 14 months |
| Size | 45 MB | 33 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳市创艺慧云信息有限公司](https://appshunter.io/developer/1069607179) | [Shenzhen Tech-wing Precision Electronics Co.,LTD](https://appshunter.io/developer/1654488267) |

## What reviewers say

### CDDK

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

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

**In-app purchases:** none


### lightthings

[App page](https://appshunter.io/ios/app/lightthings/id6444407232)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CDDK free?

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

### Is lightthings free?

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

### Do CDDK or lightthings have ads?

Neither CDDK nor lightthings shows ads.

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

CDDK ships an update every 3 months, and lightthings every 14 months. Most recently, CDDK was updated on November 7, 2026 and lightthings on November 12, 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.*