# 渝北职业教育中心 vs B

The clearest difference is update cadence: B at every 3 weeks against 渝北职业教育中心's every 2 months. 渝北职业教育中心's advantage is iOS requirement (11.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

渝北职业教育中心 ships an update every 2 months, B every 3 weeks. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 渝北职业教育中心 | B |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 21 MB | 34 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [鸿兵 蒋](https://appshunter.io/developer/1294642289) | [BOE Energy Technology Co., Ltd.](https://appshunter.io/developer/1476777673) |

## What reviewers say

### 渝北职业教育中心

[App page](https://appshunter.io/ios/app/id1316878732)

**Features:** macOS Compatibility

**In-app purchases:** none


### B

[App page](https://appshunter.io/ios/app/b-isolar/id1476777674)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 渝北职业教育中心 free?

渝北职业教育中心 is free to download, with no in-app purchases.

### Is B free?

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

### Do 渝北职业教育中心 or B have ads?

Neither 渝北职业教育中心 nor B shows ads.

### Which is updated more often, 渝北职业教育中心 or B?

渝北职业教育中心 ships an update every 2 months, and B every 3 weeks. Most recently, 渝北职业教育中心 was updated on November 4, 2026 and B on November 3, 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.*