# Pro BMS vs BMS UPGRADE

The clearest difference is update cadence: BMS UPGRADE at monthly against Pro BMS's every 2 months. BMS UPGRADE also leads on iOS requirement (12.0 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.

Pro BMS ships an update every 2 months, BMS UPGRADE monthly. The most recent releases landed on August 18, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Pro BMS | BMS UPGRADE |
| --- | --- | --- |
| 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 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 35 MB | 12 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) | [Lithiumhub LLC](https://appshunter.io/developer/1459476104) |

## 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


### BMS UPGRADE

[App page](https://appshunter.io/ios/app/bms-upgrade/id6498470721)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pro BMS free?

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

### Is BMS UPGRADE free?

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

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

Neither Pro BMS nor BMS UPGRADE shows ads.

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

Pro BMS ships an update every 2 months, and BMS UPGRADE monthly. Most recently, Pro BMS was updated on August 18, 2026 and BMS UPGRADE on September 17, 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.*