Aray Ess vs YJC Power
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Aray Ess
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Aray ESS is a smart monitoring and management platform designed for high-voltage energy storage devices. By logging in with an assigned account, users can monitor device operation in real time, improve O&M efficiency, and ensure system safety and stability. Main features: Device Monitoring: Real-time view of core data such as voltage, current, and power. Log Recording: Supports error log queries and device operation history tracking. Safety Management: Instant alerts for abnormal status, helping users quickly locate issues. Account Login: Simply use the account assigned by your company to access your dedicated hardware device. Wherever you are, Aray ESS enables efficient management of your energy storage system, improving reliability and safety.
YJC Power
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YJC Power lets you monitor and manage lithium battery BMS devices from your phone. Connect via Bluetooth or Wi-Fi to view real-time cell voltages, current, temperature, SOC, and protection status โ all in one place. Key Features Bluetooth & Wi-Fi dual-mode connection Real-time monitoring: cell voltage, charge/discharge, MOS temp & protection state Full parameter configuration: over-voltage, under-current, equalization, temperature protection, and more Energy storage system monitoring
Screenshots
Verdict
Aray Ess and YJC Power are too close to call on the numbers: across 6 compared parameters โ price, update cadence, ads and in-app purchases among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Aray Ess ships an update every 3 months, YJC Power every 4 months. Both last shipped on November 5, 2026.
| Parameter | Aray Ess | YJC Power |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months โ better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details โ not scored | ||
| Size | 29 MB | 42 MB |
| Age rating | 9+ | 4+ |
| Developer | ๆทฑๅณๅธๅฒ้ทๆฐ่ฝๆบ็งๆๆ้ๅ ฌๅธ | Shenzhen Yujiaocheng Technology Co., Ltd. |
In-app purchases
Aray Ess
No in-app purchases
YJC Power
No in-app purchases









