# MRCOOL SmartHVAC vs zenith Smart

The clearest difference is rating: MRCOOL SmartHVAC at 4.7 against zenith Smart's 3.0. MRCOOL SmartHVAC also leads on ratings volume (9.8K vs 4) and iOS requirement (13 vs 15.6). On price, review sentiment, update cadence and ads there is nothing between them.

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

MRCOOL SmartHVAC holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: MRCOOL SmartHVAC has 9.8K ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 49% and 50% positive.

MRCOOL SmartHVAC ships an update every 4 weeks, zenith Smart every 2 weeks. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | MRCOOL SmartHVAC | zenith Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (9.8K ratings)](https://appshunter.io/ios/app/mrcool-smarthvac/id1439162688/reviews)** | [3.0 (4 ratings)](https://appshunter.io/ios/app/zenith-smart/id1532707343/reviews) |
| Number of ratings | **9.8K** | 4 |
| Positive reviews | 49.4% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 144 MB | 4 MB |
| Requires iOS | **13** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cielo WiGle Inc.](https://appshunter.io/developer/1030282554) | [Shenzhen Hongruixin Electronic Co.,Ltd](https://appshunter.io/developer/1532694202) |

## What reviewers say

### MRCOOL SmartHVAC

[App page](https://appshunter.io/ios/app/mrcool-smarthvac/id1439162688)

Transform your existing MRCOOL air conditioners and heat pumps into smart devices. Control your home's climate remotely via smartphone or voice commands, automate settings based on your location, and set personalized schedules for comfort and energy savings.

**Highlights:** Remote AC and heat pump control, Voice command integration (Alexa, Google Home), Location-based automation, Weekly scheduling, Usage history monitoring, Air filter status alerts, Intelligent temperature triggers ('Comfy' feature)

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy installation
- 🚀 Convenient remote control
- 🚀 Effective heating and cooling
- 🚀 Quiet operation
- 🚀 Helpful customer support

**What reviewers complain about**

- 🐛 Inconsistent temperature readings
- 🐛 Unreliable scheduling and automation
- 🐛 Connectivity issues
- 🐛 Lack of metric unit support
- 🐛 Confusing interface and controls

**Reported bugs**

- App frequently loses connection to unit
- Schedules not working as expected
- Temperature calibration issues
- Inconsistent behavior between app, remote, and unit

**Requested features**

- Add Celsius temperature option
- Improve scheduling functionality (set on and off times)
- Integrate remote temperature sensor
- Provide energy usage monitoring
- Allow multiple user accounts


### zenith Smart

[App page](https://appshunter.io/ios/app/zenith-smart/id1532707343)

Control smart heating and massage products remotely via Bluetooth. Adjust temperature, set timers, and manage massage functions with a user-friendly interface. Simplifies operation compared to traditional control switches.

**Highlights:** Bluetooth connectivity, Remote temperature regulation, Scheduled shutdown timers, Massage function control, Simplified operation, Low-power communication

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

**In-app purchases:** none


## Frequently asked questions

### Is MRCOOL SmartHVAC free?

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

### Is zenith Smart free?

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

### Which has better reviews, MRCOOL SmartHVAC or zenith Smart?

MRCOOL SmartHVAC is rated higher. MRCOOL SmartHVAC averages 4.7 out of 5 from 9.8K ratings, while zenith Smart averages 3.0 from 4 ratings.

### Do MRCOOL SmartHVAC or zenith Smart have ads?

Neither MRCOOL SmartHVAC nor zenith Smart shows ads.

### Which is updated more often, MRCOOL SmartHVAC or zenith Smart?

MRCOOL SmartHVAC ships an update every 4 weeks, and zenith Smart every 2 weeks. Most recently, MRCOOL SmartHVAC was updated on October 18, 2026 and zenith Smart on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*