# Solar Aircon vs EG4 EX

The clearest difference is rating: Solar Aircon at 4.0 against EG4 EX's 2.3. Solar Aircon also leads on ratings volume (59 vs 3). EG4 EX's advantage is update cadence (every 2 weeks vs every 20 months). On price, ads, in-app purchases and monetization model 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 2.3. That said, the two scores are not equally well evidenced: Solar Aircon has 59 ratings behind it against 3, so its average is the more settled of the two.

Solar Aircon ships an update every 20 months, EG4 EX every 2 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Solar Aircon | EG4 EX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (59 ratings)](https://appshunter.io/ios/app/solar-aircon/id1503114509/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/eg4-ex/id6449516447/reviews) |
| Number of ratings | **59** | 3 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 165 MB | 91 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhejiang Deye Electrical Appliances Co., Ltd.](https://appshunter.io/developer/1332604988) | [Naveen Tera](https://appshunter.io/developer/1683496893) |

## What reviewers say

### 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


### EG4 EX

[App page](https://appshunter.io/ios/app/eg4-ex/id6449516447)

Monitor your energy storage machine's status in real-time with this mobile application. It offers convenient and quick access to data, featuring clear visualizations of both current and historical information. The software is designed for efficient data transfer, minimizing internet traffic.

**Highlights:** Real-time status monitoring, Historical data display, Data visualization charts, Low internet traffic usage, Multi-dimensional data display

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solar Aircon free?

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

### Is EG4 EX free?

EG4 EX is free to download, with no in-app purchases.

### Which has better reviews, Solar Aircon or EG4 EX?

Solar Aircon is rated higher. Solar Aircon averages 4.0 out of 5 from 59 ratings, while EG4 EX averages 2.3 from 3 ratings.

### Do Solar Aircon or EG4 EX have ads?

Neither Solar Aircon nor EG4 EX shows ads.

### Which is updated more often, Solar Aircon or EG4 EX?

Solar Aircon ships an update every 20 months, and EG4 EX every 2 weeks. Most recently, Solar Aircon was updated on November 7, 2026 and EG4 EX on November 3, 2026.

---

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