# BMS Tool vs Smart Battery Connection

The clearest difference is in-app purchases: Smart Battery Connection at none against BMS Tool's 1. Smart Battery Connection also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.2). BMS Tool's advantage is update cadence (every 2 months vs every 4 months). On price and device support there is nothing between them.

Both are free to download. BMS Tool sells 1 one-off in-app purchase. Smart Battery Connection asks for nothing beyond the download.

BMS Tool ships an update every 2 months, Smart Battery Connection every 4 months. The most recent releases landed on October 3, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | BMS Tool | Smart Battery Connection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/bms-tool/id1511343379/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 28 MB |
| Requires iOS | 15.2 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [e77code GmbH](https://appshunter.io/developer/1375405425) | [应刚 郑](https://appshunter.io/developer/1446858821) |

## What reviewers say

### 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 |


### Smart Battery Connection

[App page](https://appshunter.io/ios/app/smart-battery-connection/id1594552262)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BMS Tool free?

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

### Is Smart Battery Connection free?

Smart Battery Connection is free to download, with no in-app purchases.

### Do BMS Tool or Smart Battery Connection have ads?

BMS Tool shows ads; Smart Battery Connection does not.

### Which is updated more often, BMS Tool or Smart Battery Connection?

BMS Tool ships an update every 2 months, and Smart Battery Connection every 4 months. Most recently, BMS Tool was updated on October 3, 2026 and Smart Battery Connection on September 28, 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.*