# Sun Fun Kits BMS vs Fusion BMS

The clearest difference is update cadence: Sun Fun Kits BMS at every 5 days against Fusion BMS's every 3 months. Sun Fun Kits BMS also leads on review sentiment (25% vs 0%). Fusion BMS's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Sun Fun Kits BMS ships an update every 5 days, Fusion BMS every 3 months. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Sun Fun Kits BMS | Fusion BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (11 ratings)](https://appshunter.io/ios/app/sun-fun-kits-bms/id1600445506/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 months |
| Monetization | Free | Free |
| Size | 193 MB | 101 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [sunfunkits](https://appshunter.io/developer/1600445508) | [江西达伙网络科技有限公司](https://appshunter.io/developer/1234844673) |

## What reviewers say

### Sun Fun Kits BMS

[App page](https://appshunter.io/ios/app/sun-fun-kits-bms/id1600445506)

Manage your smart batteries and kits effortlessly. View battery health, state of charge, and perform diagnostics. Supports all Sun Fun Kits products and devices using the BLE protocol.

**Highlights:** Manage smart batteries and kits, View battery health, Check state of charge, Perform battery diagnostics, Supports BLE protocol devices

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Sun Fun Kits BMS free?

Sun Fun Kits BMS is free to download, with no in-app purchases.

### Is Fusion BMS free?

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

### Do Sun Fun Kits BMS or Fusion BMS have ads?

Neither Sun Fun Kits BMS nor Fusion BMS shows ads.

### Which is updated more often, Sun Fun Kits BMS or Fusion BMS?

Sun Fun Kits BMS ships an update every 5 days, and Fusion BMS every 3 months. Most recently, Sun Fun Kits BMS was updated on October 25, 2026 and Fusion BMS on October 14, 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.*