SmartESS vs Legion Solar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartESS
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.
- 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
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Optical storage treasure is a mobile terminal application software for intelligent monitoring energy storage machine, which enables users to monitor the energy storage machine status information in real time more easily and quickly. intelligent Data visualization, the chart is simple and easy to understand More wise Show real-time and historical data over the web anytime, anywhere rich Display real-time and historical data in multiple dimensions save The traffic generated by the Internet is small, fast, and does not occupy large traffic charges.
Legion Solar
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.
- Inverter/Battery Commander Setup
- Electrical system calibration
- Energy production and consumption tracking
- Energy production graphs
- System health monitoring
- Diagnostics utilities
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Legion Solar app is compatible with Solar Regulator V1.0 or later hardware. Connection is established via Bluetooth LE. Legion Solar app features include: 1) Inverter / Battery Commander Setup 2) Electrical system calibration 3) Energy production and consumption 4) Energy production graphs for day-month-year 5) System health 6) Security 7) Diagnostics utilities and more… The app can support up to 32 micro-inverters for a total system size ranging from 200W to 9.6kW. For more details visit legionsolar.com
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SmartESS | Legion Solar |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (127 ratings) | 3.4 (17 ratings) — better |
| Positive reviews | 19.7% of reviews | 34.6% of reviews — better |
| Number of ratings | 127 — better | 17 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 198 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | 祥梯 孟 | PLX Devices, INC. |
Customer experience
SmartESS
Legion Solar
In-app purchases
SmartESS
No in-app purchases
Legion Solar
No in-app purchases
