# BMS Tool vs BATT 4DAT

The clearest difference is ads: BATT 4DAT at none against BMS Tool's shown. BMS Tool's advantage is iOS requirement (15.2 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. BMS Tool sells 1 one-off in-app purchase and BATT 4DAT sells 1 in-app purchase, starting at $6.99 per year. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | BMS Tool | BATT 4DAT |
| --- | --- | --- |
| 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 | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 2 MB |
| Requires iOS | **15.2** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [e77code GmbH](https://appshunter.io/developer/1375405425) | [4DAT LLC](https://appshunter.io/developer/1649051364) |

## 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 |


### BATT 4DAT

[App page](https://appshunter.io/ios/app/batt-4dat/id6764625226)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BATT 4DAT Premium | $6.99 | per year |


## Frequently asked questions

### Is BMS Tool free?

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

### Is BATT 4DAT free?

BATT 4DAT is free to download, with in-app purchases available.

### Do BMS Tool or BATT 4DAT have ads?

BMS Tool shows ads; BATT 4DAT does not.

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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.*