# 小石开门 vs PMSc

The clearest difference is ads: PMSc at none against 小石开门's shown. PMSc also leads on iOS requirement (9.0 vs 13.0). On price, 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.

## The numbers

| Metric | 小石开门 | PMSc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/id1639255748/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | — |
| Size | 76 MB | 16 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [深圳市小石科技有限公司](https://appshunter.io/developer/1111437514) | [光网视科技](https://appshunter.io/developer/1523423843) |

## What reviewers say

### 小石开门

[App page](https://appshunter.io/ios/app/id1639255748)

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

**In-app purchases:** none


### PMSc

[App page](https://appshunter.io/ios/app/pmsc/id6462861014)

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

**In-app purchases:** none


## Frequently asked questions

### Is 小石开门 free?

小石开门 is free to download, with no in-app purchases.

### Is PMSc free?

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

### Do 小石开门 or PMSc have ads?

小石开门 shows ads; PMSc does not.

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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.*