# Airzone Cloud vs Duct Sensor Assistant

The clearest difference is update cadence: Airzone Cloud at every 9 days against Duct Sensor Assistant's every 6 months. Duct Sensor Assistant's advantage is iOS requirement (12.0 vs 15.5). 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.

Airzone Cloud ships an update every 9 days, Duct Sensor Assistant every 6 months. The most recent releases landed on September 23, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Airzone Cloud | Duct Sensor Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (312 ratings)](https://appshunter.io/ios/app/airzone-cloud/id968067256/reviews)** | — |
| Number of ratings | **312** | — |
| Positive reviews | 35.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 months |
| Monetization | Free | — |
| Size | 105 MB | 31 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Corporacion Empresarial Altra SL](https://appshunter.io/developer/669410460) | [BELIMO Automation AG](https://appshunter.io/developer/1149281298) |

## What reviewers say

### Airzone Cloud

[App page](https://appshunter.io/ios/app/airzone-cloud/id968067256)

Control your home's air conditioning and heating system remotely from your smart devices. Adjust temperatures by room, set schedules, and monitor energy usage for comfort and savings. Manage multiple systems and users with ease.

**Highlights:** Remote AC and heating control, Room-by-room temperature adjustment, Weekly scheduling, Custom scene creation, Energy consumption monitoring, User management, Voice control integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Duct Sensor Assistant

[App page](https://appshunter.io/ios/app/duct-sensor-assistant/id1559862597)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Airzone Cloud free?

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

### Is Duct Sensor Assistant free?

Duct Sensor Assistant is free to download, with no in-app purchases.

### Do Airzone Cloud or Duct Sensor Assistant have ads?

Neither Airzone Cloud nor Duct Sensor Assistant shows ads.

### Which is updated more often, Airzone Cloud or Duct Sensor Assistant?

Airzone Cloud ships an update every 9 days, and Duct Sensor Assistant every 6 months. Most recently, Airzone Cloud was updated on September 23, 2026 and Duct Sensor Assistant on September 16, 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.*