# Fusion BMS vs BATT 4DAT

The clearest difference is in-app purchases: Fusion BMS at none against BATT 4DAT's 1. Fusion BMS also leads on iOS requirement (11.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. BATT 4DAT sells 1 in-app purchase, starting at $6.99 per year. Fusion BMS asks for nothing beyond the download.

## The numbers

| Metric | Fusion BMS | BATT 4DAT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 101 MB | 2 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [江西达伙网络科技有限公司](https://appshunter.io/developer/1234844673) | [4DAT LLC](https://appshunter.io/developer/1649051364) |

## What reviewers say

### Fusion BMS

[App page](https://appshunter.io/ios/app/fusion-bms/id6443984576)

This intelligent management system monitors battery status, collects real-time operational data, and exchanges information with external devices. It enhances the safety, usability, and lifespan of lithium battery systems by providing detailed parameter displays and critical alerts.

**Highlights:** Real-time voltage, current, and power monitoring, Single cell voltage and alarm status display, Cell comparison and balance display, Temperature, short-circuit, over/under-voltage alarms, Warning event logging, Compatibility with various battery brands

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

**In-app purchases:** none


### 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 Fusion BMS free?

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

### Is BATT 4DAT free?

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

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

Neither Fusion BMS nor BATT 4DAT shows ads.

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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.*