# Control X vs D

The clearest difference is rating: D at 5.0 against Control X's 4.0. D also leads on update cadence (weekly vs every 2 months). Control X's advantage is iOS requirement (9.0 vs 12.4). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

D holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Control X ships an update every 2 months, D weekly. The most recent releases landed on September 12, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | Control X | D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/control-x/id899932413/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/d-controls-smarthome/id1422753588/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | Free |
| Size | 119 MB | 82 MB |
| Requires iOS | **9.0** | 12.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou DSPPA Audio Co., Ltd.](https://appshunter.io/developer/1408491681) | [Hangzhou D-Haus Technology Co.,Ltd.](https://appshunter.io/developer/540292612) |

## What reviewers say

### Control X

[App page](https://appshunter.io/ios/app/control-x/id899932413)

Control your Auxdio multi-room audio system from your iPhone. Manage room status, switch audio sources, adjust volume, and stream music from various sources like DLNA servers and internet radio.

**Highlights:** View and control room status, Switch audio sources, Play/pause and navigate music, Stream music from DLNA/UPnP servers, Play internet radio, Adjust volume and mute rooms

**Features:** macOS Compatibility

**In-app purchases:** none


### D

[App page](https://appshunter.io/ios/app/d-controls-smarthome/id1422753588)

Control lights, air conditioning, ventilation, and more remotely via KNX hardware. Manage an entire building's systems with intuitive touch controls on a floor plan.

**Highlights:** Remote lighting control, Air conditioning management, Ventilation system control, Floor plan interface, Building system management, Security system integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Control X free?

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

### Is D free?

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

### Which has better reviews, Control X or D?

D is rated higher. Control X averages 4.0 out of 5 from 1 ratings, while D averages 5.0 from 1 ratings.

### Do Control X or D have ads?

Neither Control X nor D shows ads.

### Which is updated more often, Control X or D?

Control X ships an update every 2 months, and D weekly. Most recently, Control X was updated on September 12, 2026 and D on July 5, 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.*