# B+ 必订火 vs 宠友IM

The clearest difference is update cadence: B+ 必订火 at every 10 days against 宠友IM's every 3 months. B+ 必订火 also leads on iOS requirement (9.0 vs 13.0). 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.

B+ 必订火 ships an update every 10 days, 宠友IM every 3 months. Both last shipped on September 29, 2026.

## The numbers

| Metric | B+ 必订火 | 宠友IM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 months |
| Size | 35 MB | 197 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hangzhou ShuyingZhilian Technology Co., Ltd.](https://appshunter.io/developer/1330551257) | [湖南宠友信息技术有限公司](https://appshunter.io/developer/1545099500) |

## What reviewers say

### B+ 必订火

[App page](https://appshunter.io/ios/app/b-plus/id1321867550)

**Features:** macOS Compatibility

**In-app purchases:** none


### 宠友IM

[App page](https://appshunter.io/ios/app/im/id6463713126)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is B+ 必订火 free?

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

### Is 宠友IM free?

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

### Do B+ 必订火 or 宠友IM have ads?

Neither B+ 必订火 nor 宠友IM shows ads.

### Which is updated more often, B+ 必订火 or 宠友IM?

B+ 必订火 ships an update every 10 days, and 宠友IM every 3 months. Most recently, B+ 必订火 was updated on September 29, 2026 and 宠友IM on September 29, 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.*