# SmartESS vs Solar Aircon

The clearest difference is review sentiment: Solar Aircon at 67% against SmartESS's 20%. Solar Aircon also leads on rating (4.0 vs 2.7) and iOS requirement (11.0 vs 13.0). SmartESS's advantage is update cadence (monthly vs every 20 months). 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.

Solar Aircon holds the better App Store score, 4.0 against 2.7. Both are backed by a comparable volume of ratings — 125 and 58 respectively. Written reviews point the same way: 20% of SmartESS's written reviews are positive against 67% of Solar Aircon's.

SmartESS ships an update monthly, Solar Aircon every 20 months. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | SmartESS | Solar Aircon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (125 ratings)](https://appshunter.io/ios/app/smartess/id1334656760/reviews) | **[4.0 (58 ratings)](https://appshunter.io/ios/app/solar-aircon/id1503114509/reviews)** |
| Number of ratings | **125** | 58 |
| Positive reviews | 19.7% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 20 months |
| Monetization | Free | Free |
| Size | 198 MB | 165 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [祥梯 孟](https://appshunter.io/developer/1070155084) | [Zhejiang Deye Electrical Appliances Co., Ltd.](https://appshunter.io/developer/1332604988) |

## What reviewers say

### SmartESS

[App page](https://appshunter.io/ios/app/smartess/id1334656760)

Monitor your energy storage machine's status in real-time with this mobile application. It offers easy-to-understand data visualization, historical data access from anywhere, and displays information in multiple dimensions. The app is designed for efficient data transfer with minimal internet traffic usage.

**Highlights:** Real-time energy storage machine monitoring, Intelligent data visualization, Simple and easy-to-understand charts, Access historical data anytime, anywhere, Multi-dimensional data display, Low internet traffic usage

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar Aircon

[App page](https://appshunter.io/ios/app/solar-aircon/id1503114509)

Monitor your air conditioner's power saving capabilities, with potential savings of 50%-100% during daytime hours. Remotely control your AC unit from any location and set timers for automated operation.

**Highlights:** Check power saving status, Remote AC control, Set operational timers, Monitor daytime energy savings

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

**In-app purchases:** none


## Frequently asked questions

### Is SmartESS free?

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

### Is Solar Aircon free?

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

### Which has better reviews, SmartESS or Solar Aircon?

Solar Aircon is rated higher. SmartESS averages 2.7 out of 5 from 125 ratings, while Solar Aircon averages 4.0 from 58 ratings.

### Do SmartESS or Solar Aircon have ads?

Neither SmartESS nor Solar Aircon shows ads.

### Which is updated more often, SmartESS or Solar Aircon?

SmartESS ships an update monthly, and Solar Aircon every 20 months. Most recently, SmartESS was updated on October 20, 2026 and Solar Aircon on October 21, 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.*