MRCOOL SmartHVAC vs zenith Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MRCOOL SmartHVAC
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.
- 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)
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MRCOOL SmartHVAC App works with MRCOOL Smart Controllers to convert MRCOOL Air Conditioners & Heat Pumps to smart ones. Our smart controllers work with this App to help you convert your existing or new ACs to smart ACs. You can control your MRCOOL ACs through your smartphone or simple voice commands (our smart controllers are Alexa & Google Home enabled). These DIY controllers are extremely easy to setup. You can automatically turn the air conditioner or heat pump OFF when you leave the premises and start to cool/heat once you arrive as per your settings. This App gives you complete control of your heating and cooling. It figures out when you're at home and when you're out and adjusts the settings to provide comfort and energy savings. You can set weekly schedules for your air conditioners, monitor usage history, set air conditioning action in relation to your locations, see the air filter status of your AC and lot more. You can set intelligent temperature based triggers for your air conditioners by using the ‘Comfy’ feature under ‘My Rules’ section of the app. Comfy lets you set triggers to personalize the operation of your AC. It helps you automatically change your AC settings if room temperature goes above or falls below a pre-set value. It helps you reduce your energy bills with lot of convenience. Continued use of GPS running in the background can dramatically decrease battery life.
zenith Smart
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.
- Bluetooth connectivity
- Remote temperature regulation
- Scheduled shutdown timers
- Massage function control
- Simplified operation
- Low-power communication
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App adopts low-power ble Bluetooth communication technology. Connect the product Bluetooth ble through the mobile phone, remotely control the intelligent warm intelligent product, and realize the mobile phone control, temperature regulation, regular shutdown, massage and heating product regulation. It solves the problems that the traditional temperature control switch has no display and too many keys, and the operation is complex.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | MRCOOL SmartHVAC | zenith Smart |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (9.8K ratings) — better | 3.0 (4 ratings) |
| Positive reviews | 49.4% of reviews | 50.0% of reviews — better |
| Number of ratings | 9.8K — better | 4 |
| Update frequency | Every 4 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13 — better | 15.6 |
| Further details — not scored | ||
| Size | 144 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Cielo WiGle Inc. | Shenzhen Hongruixin Electronic Co.,Ltd |
Customer experience
MRCOOL SmartHVAC
zenith Smart
Bugs and requests
MRCOOL SmartHVAC
Reported bugs
4 issues- App frequently loses connection to unit
- Schedules not working as expected
- Temperature calibration issues
- Inconsistent behavior between app, remote, and unit
Requested features
5 requests- 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
Not enough reviews yet to summarise bugs or requests.
In-app purchases
MRCOOL SmartHVAC
No in-app purchases
zenith Smart
No in-app purchases









