# 极空BMS vs Tech

The clearest difference is update cadence: 极空BMS at every 3 weeks against Tech's every 6 months. Tech's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17). On price, 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.

极空BMS ships an update every 3 weeks, Tech every 6 months. The most recent releases landed on September 23, 2026 and May 18, 2026 respectively.

## The numbers

| Metric | 极空BMS | Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (37 ratings)](https://appshunter.io/ios/app/bms/id1425725691/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 34.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free | — |
| Size | 36 MB | 49 MB |
| Requires iOS | 17 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [鹏 张](https://appshunter.io/developer/1425725690) | [梅 熊](https://appshunter.io/developer/1542494408) |

## 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


### Tech

[App page](https://appshunter.io/ios/app/tech-panel/id1542750443)

**Features:** macOS Compatibility

**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 Tech free?

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

### Do 极空BMS or Tech have ads?

Neither 极空BMS nor Tech shows ads.

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

极空BMS ships an update every 3 weeks, and Tech every 6 months. Most recently, 极空BMS was updated on September 23, 2026 and Tech on May 18, 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.*