Sun Fun Kits BMS vs Big Beard Battery
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sun Fun Kits BMS
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.
- Manage smart batteries and kits
- View battery health
- Check state of charge
- Perform battery diagnostics
- Supports BLE protocol devices
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With the Sun Fun Kits BMS app, you can manage your smart batteries and kits with ease; it's completely free! Supports all Sun Fun Kits products & devices. You can view your battery health and state of charge as well as perform diagnostics on your battery. Supports the SFK-260, SFK-260HP, KIT BMS, and future products that use the BLE protocol. NOTE: BLE devices require location services, please ensure these are turned on.
Big Beard Battery
Monitor and control your battery's active equalizer settings remotely via Bluetooth. View real-time status and adjust operating parameters for optimal performance.
- Real-time status monitoring
- Operating parameter settings
- Bluetooth connectivity
- Active equalizer control
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This APP is used in the battery management system, and connects to the active equalizer of the extreme space technology through Bluetooth to realize the parameter display and setting of the active equalizer. The specific function modules are as follows: -Real-time status monitoring; -Setting of operating parameters;
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Sun Fun Kits BMS | Big Beard Battery |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (10 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 10 — better | 1 |
| Update frequency | Every 5 days — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.3 — better | 14.0 |
| Further details — not scored | ||
| Size | 121 MB | 35 MB |
| Age rating | 4+ | 17+ |
| Developer | Sun Fun Kits LLC | 鹏 张 |
Customer experience
Sun Fun Kits BMS
Big Beard Battery
In-app purchases
Sun Fun Kits BMS
No in-app purchases
Big Beard Battery
No in-app purchases
