# 宇扬星蓝牙助手 vs BMS Tool

The clearest difference is review sentiment: BMS Tool at 71% against 宇扬星蓝牙助手's 0%. BMS Tool also leads on update cadence (every 2 months vs every 14 months) and rating (3.9 vs 3.5). 宇扬星蓝牙助手's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price there is nothing between them.

Both are free to download. BMS Tool sells 1 one-off in-app purchase. 宇扬星蓝牙助手 asks for nothing beyond the download.

BMS Tool holds the better App Store score, 3.9 against 3.5. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews point the same way: 0% of 宇扬星蓝牙助手's written reviews are positive against 71% of BMS Tool's.

宇扬星蓝牙助手 ships an update every 14 months, BMS Tool every 2 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 宇扬星蓝牙助手 | BMS Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/id915709638/reviews) | **[3.9 (7 ratings)](https://appshunter.io/ios/app/bms-tool/id1511343379/reviews)** |
| Number of ratings | 2 | **7** |
| Positive reviews | 0.0% of reviews | **71.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 20 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Hangzhou YuYang Technology Co., LTD.](https://appshunter.io/developer/915709641) | [e77code GmbH](https://appshunter.io/developer/1375405425) |

## What reviewers say

### 宇扬星蓝牙助手

[App page](https://appshunter.io/ios/app/id915709638)

**Features:** macOS Compatibility

**In-app purchases:** none


### BMS Tool

[App page](https://appshunter.io/ios/app/bms-tool/id1511343379)

Monitor your battery management systems via Bluetooth. Supports multiple BMS types including Liontron, XiaoXiang, ANT, and Wattstunde. Offers a screen always-on mode and macOS compatibility.

**Highlights:** Screen Always ON mode, Multiple BMS support, Liontron BMS read-only, XiaoXiang BMS read-only, ANT BMS read-only, Wattstunde LiFePo4 read-only, macOS support

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is 宇扬星蓝牙助手 free?

宇扬星蓝牙助手 is free to download, with no in-app purchases.

### Is BMS Tool free?

BMS Tool is free to download, with in-app purchases available.

### Which has better reviews, 宇扬星蓝牙助手 or BMS Tool?

BMS Tool is rated higher. 宇扬星蓝牙助手 averages 3.5 out of 5 from 2 ratings, while BMS Tool averages 3.9 from 7 ratings.

### Do 宇扬星蓝牙助手 or BMS Tool have ads?

BMS Tool shows ads; 宇扬星蓝牙助手 does not.

### Which is updated more often, 宇扬星蓝牙助手 or BMS Tool?

宇扬星蓝牙助手 ships an update every 14 months, and BMS Tool every 2 months. Most recently, 宇扬星蓝牙助手 was updated on October 24, 2026 and BMS Tool on October 29, 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.*