# J vs 医百会议HD

The clearest difference is update cadence: 医百会议HD at monthly against J's every 10 months. J's advantage is iOS requirement (8.0 vs 12.0). 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.

J ships an update every 10 months, 医百会议HD monthly. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | J | 医百会议HD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Size | 79 MB | 120 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Xunzhong Communication Technology Co., Ltd.](https://appshunter.io/developer/821439465) | [Beijing Yibai technological Co., Ltd](https://appshunter.io/developer/1175676396) |

## What reviewers say

### J

[App page](https://appshunter.io/ios/app/j-rooms-controller/id1536553888)

**In-app purchases:** none


### 医百会议HD

[App page](https://appshunter.io/ios/app/hd/id1580863177)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is J free?

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

### Is 医百会议HD free?

医百会议HD is free to download, with no in-app purchases.

### Do J or 医百会议HD have ads?

Neither J nor 医百会议HD shows ads.

### Which is updated more often, J or 医百会议HD?

J ships an update every 10 months, and 医百会议HD monthly. Most recently, J was updated on September 8, 2026 and 医百会议HD on September 9, 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.*