# SolarAssistant vs SmartESS

The clearest difference is rating: SmartESS at 2.7 against SolarAssistant's 1.0. SmartESS also leads on ratings volume (125 vs 2) and review sentiment (20% vs 0%). SolarAssistant's advantage is update cadence (every 11 days vs monthly) and iOS requirement (9.0 vs 13.0). 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.

SmartESS holds the better App Store score, 2.7 against 1.0. That said, the two scores are not equally well evidenced: SmartESS has 125 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of SolarAssistant's written reviews are positive against 20% of SmartESS's.

SolarAssistant ships an update every 11 days, SmartESS monthly. The most recent releases landed on September 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SolarAssistant | SmartESS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/solarassistant/id1123555800/reviews) | **[2.7 (125 ratings)](https://appshunter.io/ios/app/smartess/id1334656760/reviews)** |
| Number of ratings | 2 | **125** |
| Positive reviews | 0.0% of reviews | **19.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Monthly |
| Monetization | Free | Free |
| Size | 12 MB | 198 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [易事特集团股份有限公司](https://appshunter.io/developer/1036040326) | [祥梯 孟](https://appshunter.io/developer/1070155084) |

## What reviewers say

### SolarAssistant

[App page](https://appshunter.io/ios/app/solarassistant/id1123555800)

This app connects to solar inverters via Bluetooth or WiFi for maintenance. It allows real-time monitoring of alarms, configuration parameters, and device health history. Quickly locate faults and enhance operational efficiency.

**Highlights:** Bluetooth/WiFi inverter connection, Real-time alarm monitoring, Configuration parameter access, Log downloading, Fault location and management, Device health history query

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is SolarAssistant free?

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

### Is SmartESS free?

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

### Which has better reviews, SolarAssistant or SmartESS?

SmartESS is rated higher. SolarAssistant averages 1.0 out of 5 from 2 ratings, while SmartESS averages 2.7 from 125 ratings.

### Do SolarAssistant or SmartESS have ads?

Neither SolarAssistant nor SmartESS shows ads.

### Which is updated more often, SolarAssistant or SmartESS?

SolarAssistant ships an update every 11 days, and SmartESS monthly. Most recently, SolarAssistant was updated on September 16, 2026 and SmartESS on October 13, 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.*