# CMaster vs 山科智慧二供

The clearest difference is update cadence: 山科智慧二供 at every 3 weeks against CMaster's every 2 months. CMaster's advantage is iOS requirement (9.0 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.

CMaster ships an update every 2 months, 山科智慧二供 every 3 weeks. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | CMaster | 山科智慧二供 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 82 MB | 83 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sichuan Changhong Network Technologies Co., Ltd.](https://appshunter.io/developer/1510669126) | [杭州山科智能科技股份有限公司](https://appshunter.io/developer/1785810006) |

## What reviewers say

### CMaster

[App page](https://appshunter.io/ios/app/cmaster/id1510669127)

**Features:** macOS Compatibility

**In-app purchases:** none


### 山科智慧二供

[App page](https://appshunter.io/ios/app/id6596812782)

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

**In-app purchases:** none


## Frequently asked questions

### Is CMaster free?

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

### Is 山科智慧二供 free?

山科智慧二供 is free to download, with no in-app purchases.

### Do CMaster or 山科智慧二供 have ads?

Neither CMaster nor 山科智慧二供 shows ads.

### Which is updated more often, CMaster or 山科智慧二供?

CMaster ships an update every 2 months, and 山科智慧二供 every 3 weeks. Most recently, CMaster was updated on November 7, 2026 and 山科智慧二供 on November 8, 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.*