# SmartESS vs Solar Guardian

The clearest difference is rating: SmartESS at 2.7 against Solar Guardian's 2.4. SmartESS also leads on ratings volume (125 vs 16). 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.

SmartESS holds the better App Store score, 2.7 against 2.4. That said, the two scores are not equally well evidenced: SmartESS has 125 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 20% of SmartESS's written reviews are positive against 17% of Solar Guardian's.

SmartESS ships an update monthly, Solar Guardian every 2 months. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SmartESS | Solar Guardian |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (125 ratings)](https://appshunter.io/ios/app/smartess/id1334656760/reviews)** | [2.4 (16 ratings)](https://appshunter.io/ios/app/solar-guardian/id6443552259/reviews) |
| Number of ratings | **125** | 16 |
| Positive reviews | **19.7% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 198 MB | 84 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [祥梯 孟](https://appshunter.io/developer/1070155084) | [BEIJING EPSOLAR TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1330876646) |

## 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 Guardian

[App page](https://appshunter.io/ios/app/solar-guardian/id6443552259)

Monitor and control various solar energy systems, including inverters, chargers, and storage solutions. Adjust parameters and view data for optimal energy management.

**Highlights:** Data display for solar systems, Parameter setting for inverters, Supports grid-tie inverters, Hybrid inverter management, Energy storage system monitoring, Home and mobile energy storage control

**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 Guardian free?

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

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

SmartESS is rated higher. SmartESS averages 2.7 out of 5 from 125 ratings, while Solar Guardian averages 2.4 from 16 ratings.

### Do SmartESS or Solar Guardian have ads?

Neither SmartESS nor Solar Guardian shows ads.

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

SmartESS ships an update monthly, and Solar Guardian every 2 months. Most recently, SmartESS was updated on October 13, 2026 and Solar Guardian on October 16, 2026.

---

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