# 极空BMS vs BMS Tool

The clearest difference is review sentiment: BMS Tool at 71% against 极空BMS's 35%. BMS Tool also leads on rating (3.9 vs 3.5) and device support (3 vs 1). 极空BMS'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. 极空BMS asks for nothing beyond the download.

BMS Tool holds the better App Store score, 3.9 against 3.5. That said, the two scores are not equally well evidenced: 极空BMS has 37 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 35% of 极空BMS's written reviews are positive against 71% of BMS Tool's.

极空BMS ships an update every 3 weeks, BMS Tool every 2 months. The most recent releases landed on September 23, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 极空BMS | BMS Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (37 ratings)](https://appshunter.io/ios/app/bms/id1425725691/reviews) | **[3.9 (7 ratings)](https://appshunter.io/ios/app/bms-tool/id1511343379/reviews)** |
| Number of ratings | **37** | 7 |
| Positive reviews | 34.8% of reviews | **71.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 36 MB | 9 MB |
| Requires iOS | 17 | **15.2** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [鹏 张](https://appshunter.io/developer/1425725690) | [e77code GmbH](https://appshunter.io/developer/1375405425) |

## What reviewers say

### 极空BMS

[App page](https://appshunter.io/ios/app/bms/id1425725691)

This application connects to a battery management system's active equalizer via Bluetooth. It allows for real-time monitoring of parameters and control over equipment settings.

**Highlights:** Real-time status monitoring, Operating parameter settings, Battery management system equipment control, Bluetooth connectivity

**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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is 极空BMS free?

极空BMS 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, 极空BMS or BMS Tool?

BMS Tool is rated higher. 极空BMS averages 3.5 out of 5 from 37 ratings, while BMS Tool averages 3.9 from 7 ratings.

### Do 极空BMS or BMS Tool have ads?

BMS Tool shows ads; 极空BMS does not.

### Which is updated more often, 极空BMS or BMS Tool?

极空BMS ships an update every 3 weeks, and BMS Tool every 2 months. Most recently, 极空BMS was updated on September 23, 2026 and BMS Tool on September 16, 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.*