# SD Master vs 周到快服

The clearest difference is iOS requirement: SD Master at 9.0 against 周到快服's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 5, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | SD Master | 周到快服 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 28 MB | 57 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Zhumang Information Technology Co., Ltd.](https://appshunter.io/developer/1578234346) | [Guangzhou Tongwang Technology Development Co, Ltd.](https://appshunter.io/developer/1094607128) |

## What reviewers say

### SD Master

[App page](https://appshunter.io/ios/app/sd-master/id1491447628)

**Features:** macOS Compatibility

**In-app purchases:** none


### 周到快服

[App page](https://appshunter.io/ios/app/id6477122181)

**In-app purchases:** none


## Frequently asked questions

### Is SD Master free?

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

### Is 周到快服 free?

周到快服 is free to download, with no in-app purchases.

### Do SD Master or 周到快服 have ads?

Neither SD Master nor 周到快服 shows ads.

### Which is updated more often, SD Master or 周到快服?

SD Master ships an update every 2 months, and 周到快服 every 2 months. Most recently, SD Master was updated on October 5, 2026 and 周到快服 on October 21, 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.*