# 极空BMS vs RuiDeng

The clearest difference is rating: 极空BMS at 3.5 against RuiDeng's 3.0. 极空BMS also leads on review sentiment (35% vs 0%) and update cadence (every 3 weeks vs every 3 months). RuiDeng's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17). 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.

极空BMS holds the better App Store score, 3.5 against 3.0. That said, the two scores are not equally well evidenced: 极空BMS has 37 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 35% of 极空BMS's written reviews are positive against 0% of RuiDeng's.

极空BMS ships an update every 3 weeks, RuiDeng every 3 months. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 极空BMS | RuiDeng |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (37 ratings)](https://appshunter.io/ios/app/bms/id1425725691/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/ruideng/id1550070005/reviews) |
| Number of ratings | **37** | 2 |
| Positive reviews | **34.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 36 MB | 14 MB |
| Requires iOS | 17 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [鹏 张](https://appshunter.io/developer/1425725690) | [亮亮 刘](https://appshunter.io/developer/1439150212) |

## What reviewers say

### 极空BMS

[App page](https://appshunter.io/ios/app/bms/id1425725691)

This application connects to a battery management system's active equalizer via Bluetooth. It allows for real-time monitoring of parameters and control over equipment settings.

**Highlights:** Real-time status monitoring, Operating parameter settings, Battery management system equipment control, Bluetooth connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


### RuiDeng

[App page](https://appshunter.io/ios/app/ruideng/id1550070005)

Connect to and manage various devices wirelessly. Display device information and control them via Wi-Fi and Bluetooth. Offers a straightforward way to interact with your hardware.

**Highlights:** Wireless device communication, Device information display, Wi-Fi connectivity, Bluetooth connectivity, Device control

**In-app purchases:** none


## Frequently asked questions

### Is 极空BMS free?

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

### Is RuiDeng free?

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

### Which has better reviews, 极空BMS or RuiDeng?

极空BMS is rated higher. 极空BMS averages 3.5 out of 5 from 37 ratings, while RuiDeng averages 3.0 from 2 ratings.

### Do 极空BMS or RuiDeng have ads?

Neither 极空BMS nor RuiDeng shows ads.

### Which is updated more often, 极空BMS or RuiDeng?

极空BMS ships an update every 3 weeks, and RuiDeng every 3 months. Most recently, 极空BMS was updated on September 23, 2026 and RuiDeng on September 21, 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.*