# 123SmartBMS vs Sun Fun Kits BMS

The clearest difference is rating: 123SmartBMS at 4.5 against Sun Fun Kits BMS's 2.8. 123SmartBMS also leads on review sentiment (67% vs 25%). Sun Fun Kits BMS's advantage is update cadence (every 4 days vs monthly). On price, ratings volume, 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.

123SmartBMS holds the better App Store score, 4.5 against 2.8. Both are backed by a comparable volume of ratings — 21 and 11 respectively. Written reviews point the same way: 67% of 123SmartBMS's written reviews are positive against 25% of Sun Fun Kits BMS's.

123SmartBMS ships an update monthly, Sun Fun Kits BMS every 4 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 123SmartBMS | Sun Fun Kits BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (21 ratings)](https://appshunter.io/ios/app/123smartbms/id988285264/reviews)** | [2.8 (11 ratings)](https://appshunter.io/ios/app/sun-fun-kits-bms/id1600445506/reviews) |
| Number of ratings | **21** | 11 |
| Positive reviews | **66.7% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free | Free |
| Size | 190 MB | 193 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Albertronic B.V.](https://appshunter.io/developer/890882604) | [sunfunkits](https://appshunter.io/developer/1600445508) |

## What reviewers say

### 123SmartBMS

[App page](https://appshunter.io/ios/app/123smartbms/id988285264)

This app monitors and manages lithium battery packs, ensuring optimal condition and extended lifespan. It tracks cell voltages, temperatures, and currents, while balancing cells during charging. Connect via Bluetooth to view real-time battery status and control charging/discharging.

**Highlights:** Monitors cell voltages and temperatures, Tracks in- and outgoing currents, Balances cells during charging, Bluetooth connectivity for real-time data, Controls charge/discharge signals, Extends battery pack lifespan

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 123SmartBMS free?

123SmartBMS is free to download, with no in-app purchases.

### Is Sun Fun Kits BMS free?

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

### Which has better reviews, 123SmartBMS or Sun Fun Kits BMS?

123SmartBMS is rated higher. 123SmartBMS averages 4.5 out of 5 from 21 ratings, while Sun Fun Kits BMS averages 2.8 from 11 ratings.

### Do 123SmartBMS or Sun Fun Kits BMS have ads?

Neither 123SmartBMS nor Sun Fun Kits BMS shows ads.

### Which is updated more often, 123SmartBMS or Sun Fun Kits BMS?

123SmartBMS ships an update monthly, and Sun Fun Kits BMS every 4 days. Most recently, 123SmartBMS was updated on October 7, 2026 and Sun Fun Kits BMS on October 12, 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.*