# Fusion BMS vs EnerKey

The clearest difference is review sentiment: EnerKey at 75% against Fusion BMS's 0%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fusion BMS ships an update every 3 months, EnerKey every 2 months. The most recent releases landed on October 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Fusion BMS | EnerKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (3 ratings)](https://appshunter.io/ios/app/enerkey/id6447932138/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 0.0% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 101 MB | 31 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [江西达伙网络科技有限公司](https://appshunter.io/developer/1234844673) | [Shenzhen Jinwei Power Source Technology Co., Ltd](https://appshunter.io/developer/1683049152) |

## 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


### EnerKey

[App page](https://appshunter.io/ios/app/enerkey/id6447932138)

Monitor and control your lithium battery system in real-time. View current status, historical data, and adjust protective parameters to ensure safe operation. Receive instant alerts for any abnormal conditions.

**Highlights:** Real-time battery monitoring, Historical data inquiry, Parameter setting, Alarm notifications, Voltage, current, and temperature display

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fusion BMS free?

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

### Is EnerKey free?

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

### Do Fusion BMS or EnerKey have ads?

Neither Fusion BMS nor EnerKey shows ads.

### Which is updated more often, Fusion BMS or EnerKey?

Fusion BMS ships an update every 3 months, and EnerKey every 2 months. Most recently, Fusion BMS was updated on October 14, 2026 and EnerKey on September 25, 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.*