# Lucky BMS vs Pro BMS

The clearest difference is update cadence: Pro BMS at every 2 months against Lucky BMS's every 5 months. Lucky BMS's advantage is iOS requirement (9.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Lucky BMS ships an update every 5 months, Pro BMS every 2 months. The most recent releases landed on July 5, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | Lucky BMS | Pro BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/pro-bms/id6474855560/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 19 MB | 35 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [立 冉](https://appshunter.io/developer/1637401546) | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) |

## What reviewers say

### Lucky BMS

[App page](https://appshunter.io/ios/app/lucky-bms/id6445901853)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Lucky BMS free?

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

### Is Pro BMS free?

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

### Do Lucky BMS or Pro BMS have ads?

Neither Lucky BMS nor Pro BMS shows ads.

### Which is updated more often, Lucky BMS or Pro BMS?

Lucky BMS ships an update every 5 months, and Pro BMS every 2 months. Most recently, Lucky BMS was updated on July 5, 2026 and Pro BMS on August 18, 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.*