# SmartESS vs Legion Solar

The clearest difference is rating: Legion Solar at 3.4 against SmartESS's 2.7. Legion Solar also leads on review sentiment (35% vs 20%). SmartESS's advantage is ratings volume (127 vs 17). On price, update cadence, 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.

Legion Solar holds the better App Store score, 3.4 against 2.7. That said, the two scores are not equally well evidenced: SmartESS has 127 ratings behind it against 17, 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 35% of Legion Solar's.

SmartESS ships an update monthly, Legion Solar every 3 weeks. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | SmartESS | Legion Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (127 ratings)](https://appshunter.io/ios/app/smartess/id1334656760/reviews) | **[3.4 (17 ratings)](https://appshunter.io/ios/app/legion-solar/id1418030840/reviews)** |
| Number of ratings | **127** | 17 |
| Positive reviews | 19.7% of reviews | **34.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 198 MB | 40 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [祥梯 孟](https://appshunter.io/developer/1070155084) | [PLX Devices, INC.](https://appshunter.io/developer/388327605) |

## 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


### Legion Solar

[App page](https://appshunter.io/ios/app/legion-solar/id1418030840)

Monitor and control your solar energy system with this app. It allows for setup, calibration, and real-time tracking of energy production and consumption. View historical data and system health diagnostics.

**Highlights:** Inverter/Battery Commander Setup, Electrical system calibration, Energy production and consumption tracking, Energy production graphs, System health monitoring, Diagnostics utilities

**In-app purchases:** none


## Frequently asked questions

### Is SmartESS free?

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

### Is Legion Solar free?

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

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

Legion Solar is rated higher. SmartESS averages 2.7 out of 5 from 127 ratings, while Legion Solar averages 3.4 from 17 ratings.

### Do SmartESS or Legion Solar have ads?

Neither SmartESS nor Legion Solar shows ads.

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

SmartESS ships an update monthly, and Legion Solar every 3 weeks. Most recently, SmartESS was updated on October 23, 2026 and Legion Solar on October 20, 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.*