# Pro BMS vs ANCEL BM300 Pro

The clearest difference is rating: ANCEL BM300 Pro at 2.8 against Pro BMS's 1.0. ANCEL BM300 Pro also leads on ratings volume (23 vs 1). 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.

ANCEL BM300 Pro holds the better App Store score, 2.8 against 1.0. That said, the two scores are not equally well evidenced: ANCEL BM300 Pro has 23 ratings behind it against 1, so its average is the more settled of the two.

Pro BMS ships an update every 2 months, ANCEL BM300 Pro monthly. The most recent releases landed on October 13, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Pro BMS | ANCEL BM300 Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/pro-bms/id6474855560/reviews) | **[2.8 (23 ratings)](https://appshunter.io/ios/app/ancel-bm300-pro/id6476840644/reviews)** |
| Number of ratings | 1 | **23** |
| Positive reviews | — | 36.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 35 MB | 68 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) | [OBDSPACE TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1434956144) |

## What reviewers say

### Pro BMS

[App page](https://appshunter.io/ios/app/pro-bms/id6474855560)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### ANCEL BM300 Pro

[App page](https://appshunter.io/ios/app/ancel-bm300-pro/id6476840644)

This app monitors 6V, 12V, and 24V batteries, allowing simultaneous tracking of up to four. It provides insights into battery health by testing startup and charging system voltage, and accurately records vehicle start and stop times. All data is accessible on your phone via Bluetooth for easy vehicle battery management.

**Highlights:** Monitors 6V, 12V, 24V batteries, Simultaneous monitoring of four batteries, Tests startup and charging system voltage, Records vehicle start/stop times, Bluetooth data display on phone, Vehicle battery power management

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Pro BMS free?

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

### Is ANCEL BM300 Pro free?

ANCEL BM300 Pro is free to download, with no in-app purchases.

### Which has better reviews, Pro BMS or ANCEL BM300 Pro?

ANCEL BM300 Pro is rated higher. Pro BMS averages 1.0 out of 5 from 1 ratings, while ANCEL BM300 Pro averages 2.8 from 23 ratings.

### Do Pro BMS or ANCEL BM300 Pro have ads?

Neither Pro BMS nor ANCEL BM300 Pro shows ads.

### Which is updated more often, Pro BMS or ANCEL BM300 Pro?

Pro BMS ships an update every 2 months, and ANCEL BM300 Pro monthly. Most recently, Pro BMS was updated on October 13, 2026 and ANCEL BM300 Pro on October 21, 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.*