# BMS Tool vs EEL

The clearest difference is in-app purchases: EEL at none against BMS Tool's 1. EEL also leads on ads (none vs shown) and iOS requirement (13.6 vs 15.2). On price, update cadence and device support there is nothing between them.

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

BMS Tool ships an update every 2 months, EEL monthly. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | BMS Tool | EEL |
| --- | --- | --- |
| 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 | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 2 MB |
| Requires iOS | 15.2 | **13.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [e77code GmbH](https://appshunter.io/developer/1375405425) | [健乐 关](https://appshunter.io/developer/1689533723) |

## 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 |


### EEL

[App page](https://appshunter.io/ios/app/eel-bms/id6449561680)

**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 EEL free?

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

### Do BMS Tool or EEL have ads?

BMS Tool shows ads; EEL does not.

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

BMS Tool ships an update every 2 months, and EEL monthly. Most recently, BMS Tool was updated on October 3, 2026 and EEL on October 2, 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.*