# QuietCool Smart Control vs HiOazo

QuietCool Smart Control and HiOazo both sit at 4.7 stars, but that hides the real split: 80% of HiOazo's written reviews are positive against 39% of QuietCool Smart Control's. HiOazo also leads on update cadence (monthly vs every 2 months). QuietCool Smart Control's advantage is ratings volume (15K vs 578). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.7 for QuietCool Smart Control against 4.6 for HiOazo. That said, the two scores are not equally well evidenced: QuietCool Smart Control has 15K ratings behind it against 578, so its average is the more settled of the two. Written reviews are what separate them: 39% of QuietCool Smart Control's written reviews are positive against 80% of HiOazo's.

QuietCool Smart Control ships an update every 2 months, HiOazo monthly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | QuietCool Smart Control | HiOazo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (15K ratings)](https://appshunter.io/ios/app/quietcool-smart-control/id1481132594/reviews)** | [4.6 (578 ratings)](https://appshunter.io/ios/app/hioazo/id6736902106/reviews) |
| Number of ratings | **15K** | 578 |
| Positive reviews | 38.5% of reviews | **80.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 145 MB | 82 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [QC Manufacturing, Inc](https://appshunter.io/developer/1210475874) | [HiOazo](https://appshunter.io/developer/1781804562) |

## What reviewers say

### QuietCool Smart Control

[App page](https://appshunter.io/ios/app/quietcool-smart-control/id1481132594)

Manage your QuietCool attic fans remotely. Adjust fan speed, set run times, and monitor attic temperature and humidity. Utilize Smart Mode for automated adjustments and create custom presets for effortless control. View detailed analytics on fan performance and environmental conditions.

**Highlights:** Control fan speed, Set fan run times, View temperature and humidity, Enable Smart Mode, Add custom presets, View analytics

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Works smoothly and reliably
- 👍 User-friendly and intuitive interface
- 🚀 Easy setup and installation
- 👍 No account required
- 🚀 Impressive Bluetooth range

**What reviewers complain about**

- 🐛 Connectivity issues after app updates
- 🔒 Limited remote access (Bluetooth-only)
- 🐛 Pairing issues with multiple devices
- 🐛 Bugs with smart mode and temperature settings
- 🐛 Unreliable WiFi connectivity

**Reported bugs**

- Firmware updates breaking existing functionality
- Inconsistent behavior with temperature and humidity settings
- Inability to stay connected after pairing a new device
- App failing to recognize the fan after updates

**Requested features**

- Add 'Quiet' mode to turn off fan during specified hours
- Integrate with weather data or allow time-of-day control
- Provide temperature/humidity history and trending
- Enable remote monitoring and control via WiFi or internet
- Allow multiple users to control the same fan


### HiOazo

[App page](https://appshunter.io/ios/app/hioazo/id6736902106)

This application simplifies garden irrigation by guiding users through a step-by-step setup to create personalized watering schedules. Automate your daily irrigation routine for efficient and refined garden management.

**Highlights:** Step-by-step setup process, Create irrigation programmes, Streamline irrigation routine, Automate daily watering, Personalized watering management, Efficient garden management

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

**In-app purchases:** none


## Frequently asked questions

### Is QuietCool Smart Control free?

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

### Is HiOazo free?

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

### Which has better reviews, QuietCool Smart Control or HiOazo?

QuietCool Smart Control is rated higher. QuietCool Smart Control averages 4.7 out of 5 from 15K ratings, while HiOazo averages 4.6 from 578 ratings.

### Do QuietCool Smart Control or HiOazo have ads?

Neither QuietCool Smart Control nor HiOazo shows ads.

### Which is updated more often, QuietCool Smart Control or HiOazo?

QuietCool Smart Control ships an update every 2 months, and HiOazo monthly. Most recently, QuietCool Smart Control was updated on October 26, 2026 and HiOazo on October 25, 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.*