# 瑩中醫 vs GreyMist Studio

The clearest difference is update cadence: GreyMist Studio at every 3 months against 瑩中醫's every 6 months. 瑩中醫's advantage is 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.

瑩中醫 ships an update every 6 months, GreyMist Studio every 3 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | 瑩中醫 | GreyMist Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Size | 32 MB | 81 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Crystal clinic](https://appshunter.io/developer/1509648187) | [HSUANPEI LAO](https://appshunter.io/developer/1676182192) |

## What reviewers say

### 瑩中醫

[App page](https://appshunter.io/ios/app/id1509648188)

**Features:** macOS Compatibility

**In-app purchases:** none


### GreyMist Studio

[App page](https://appshunter.io/ios/app/greymist-studio/id1588528819)

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

**In-app purchases:** none


## Frequently asked questions

### Is 瑩中醫 free?

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

### Is GreyMist Studio free?

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

### Do 瑩中醫 or GreyMist Studio have ads?

Neither 瑩中醫 nor GreyMist Studio shows ads.

### Which is updated more often, 瑩中醫 or GreyMist Studio?

瑩中醫 ships an update every 6 months, and GreyMist Studio every 3 months. Most recently, 瑩中醫 was updated on October 25, 2026 and GreyMist Studio on October 25, 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.*