YY BMS vs Pro BMS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YY BMS
Read full descriptionHide full description
Yanyang BMS, Your Battery Management Platform 【Dynamic Monitoring】 You can access the APP at any time and anywhere to view detailed data such as voltage, current, temperature, capacity, and SOC; 【Battery Parameter Modification】 Depending on the application scenario, you can modify the battery type, series number, and various alarm values for voltage and current; 【Real-time Control】 Once you connect the battery to the APP at any time and anywhere, you can control the charging and discharging status of the battery.
Pro BMS
This utility app measures and displays real-time battery parameters like voltage, current, and capacity. It offers customizable protection functions and allows for voltage/current curve export. Control and monitoring are available via a mobile app.
- Real-time voltage and current measurement
- Power, charge, and discharge capacity monitoring
- Customizable protection functions (overvoltage, overcurrent, etc.)
- Color LCD display of comprehensive data
- Voltage and current curve display and export
- Mobile app control and communication
Read full descriptionHide full description
The Pro BMS series voltage and ammeter is a new coulomb meter that can measure various physical parameters such as voltage, current, power, charge and discharge capacity, watt-hour, time, etc. At the same time, parameters can also be set to realize various protection functions such as overvoltage protection, undervoltage protection, overcurrent protection, overpower protection, overtemperature protection and time-limited protection. The meter can automatically identify the direction of current flow In addition, the battery capacity can be monitored in real time and the measured data is displayed on a color LCD, which displays comprehensive and user-friendly information. The Pro BMS series voltage and ammeter adds the function of displaying and exporting voltage and current curves based on the original functions. At the same time, it can be controlled by mobile APP and communication.
Screenshots
Verdict
YY BMS and Pro BMS are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
YY BMS ships an update every 6 weeks, Pro BMS every 2 months. The most recent releases landed on October 8, 2026 and September 27, 2026 respectively.
| Parameter | YY BMS | Pro BMS |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 30 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Wuhan Yanyang IoT Technology Co., Ltd. | Shenzhen Leagend Optoelectronics Co., Ltd. |
In-app purchases
YY BMS
No in-app purchases
Pro BMS
No in-app purchases
