# Sun Fun Kits BMS vs Big Beard Battery

The clearest difference is rating: Big Beard Battery at 5.0 against Sun Fun Kits BMS's 2.8. Sun Fun Kits BMS's advantage is update cadence (every 5 days vs every 6 months) and ratings volume (10 vs 1). 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.

Big Beard Battery holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: Sun Fun Kits BMS has 10 ratings behind it against 1, so its average is the more settled of the two.

Sun Fun Kits BMS ships an update every 5 days, Big Beard Battery every 6 months. The most recent releases landed on August 3, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Sun Fun Kits BMS | Big Beard Battery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (10 ratings)](https://appshunter.io/ios/app/sun-fun-kits-bms/id1600445506/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/big-beard-battery/id6460975772/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 months |
| Monetization | Free | Free |
| Size | 121 MB | 35 MB |
| Requires iOS | **12.3** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sun Fun Kits LLC](https://appshunter.io/developer/1600445508) | [鹏 张](https://appshunter.io/developer/1425725690) |

## 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


### Big Beard Battery

[App page](https://appshunter.io/ios/app/big-beard-battery/id6460975772)

Monitor and control your battery's active equalizer settings remotely via Bluetooth. View real-time status and adjust operating parameters for optimal performance.

**Highlights:** Real-time status monitoring, Operating parameter settings, Bluetooth connectivity, Active equalizer control

**Features:** macOS Compatibility

**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 Big Beard Battery free?

Big Beard Battery is free to download, with no in-app purchases.

### Which has better reviews, Sun Fun Kits BMS or Big Beard Battery?

Big Beard Battery is rated higher. Sun Fun Kits BMS averages 2.8 out of 5 from 10 ratings, while Big Beard Battery averages 5.0 from 1 ratings.

### Do Sun Fun Kits BMS or Big Beard Battery have ads?

Neither Sun Fun Kits BMS nor Big Beard Battery shows ads.

### Which is updated more often, Sun Fun Kits BMS or Big Beard Battery?

Sun Fun Kits BMS ships an update every 5 days, and Big Beard Battery every 6 months. Most recently, Sun Fun Kits BMS was updated on August 3, 2026 and Big Beard Battery on September 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*