# SmartDCU vs KSIX Ring

The clearest difference is update cadence: SmartDCU at every 2 months against KSIX Ring's every 7 months. 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.

SmartDCU ships an update every 2 months, KSIX Ring every 7 months. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | SmartDCU | KSIX Ring |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Size | 229 MB | 51 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Synergy Innovations Group Limited](https://appshunter.io/developer/1690694649) | [KSIX](https://appshunter.io/developer/1775877151) |

## What reviewers say

### SmartDCU

[App page](https://appshunter.io/ios/app/smartdcu/id6449484140)

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

**In-app purchases:** none


### KSIX Ring

[App page](https://appshunter.io/ios/app/ksix-ring/id6744636975)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmartDCU free?

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

### Is KSIX Ring free?

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

### Do SmartDCU or KSIX Ring have ads?

Neither SmartDCU nor KSIX Ring shows ads.

### Which is updated more often, SmartDCU or KSIX Ring?

SmartDCU ships an update every 2 months, and KSIX Ring every 7 months. Most recently, SmartDCU was updated on September 21, 2026 and KSIX Ring on September 19, 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.*