SmartESS vs EG4
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.
EG4
This utility app monitors your device's battery health in real-time. It displays key metrics such as current, temperature, and voltage via Bluetooth connection. Keep track of your battery's vital signs to ensure optimal performance.
- Monitor battery health
- Display current, temperature, voltage
- Bluetooth connectivity
- Real-time status updates
- Device compatibility for iPhone/iPad
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EG4 is a tool app which monitor the battery health status like currency, temperature and voltage etc using bluetooth
Screenshots
Verdict
The clearest difference is rating: SmartESS at 2.7 against EG4's 2.3. SmartESS also leads on ratings volume (125 vs 12). On price, review sentiment, update cadence and ads 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.
SmartESS holds the better App Store score, 2.7 against 2.3. That said, the two scores are not equally well evidenced: SmartESS has 125 ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 20% of SmartESS's written reviews are positive against 25% of EG4's, so the app with the better star average is not the one people write more warmly about.
SmartESS ships an update monthly, EG4 every 3 weeks. The most recent releases landed on October 13, 2026 and September 16, 2026 respectively.
| Parameter | SmartESS | EG4 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (125 ratings) — better | 2.3 (12 ratings) |
| Positive reviews | 19.7% of reviews | 25.0% of reviews — better |
| Number of ratings | 125 — better | 12 |
| 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 — better | 14.0 |
| Further details — not scored | ||
| Size | 198 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | 祥梯 孟 | 琼莉 吴 |
Customer experience
SmartESS
EG4
In-app purchases
SmartESS
No in-app purchases
EG4
No in-app purchases
