# 小黑屋云写作 vs Amsau

The clearest difference is ads: Amsau at none against 小黑屋云写作's shown. Amsau also leads on update cadence (every 5 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

小黑屋云写作 ships an update fortnightly, Amsau every 5 days. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 小黑屋云写作 | Amsau |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/id1164836637/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 70.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 54 MB | 31 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 17+ |
| Developer | [ChineseAll](https://appshunter.io/developer/415231272) | [Shenzhen Anshuo Measurement and Control Technology Co., Ltd](https://appshunter.io/developer/1703905161) |

## What reviewers say

### 小黑屋云写作

[App page](https://appshunter.io/ios/app/id1164836637)

**Features:** Vision Pro support

**In-app purchases:** none


### Amsau

[App page](https://appshunter.io/ios/app/amsau/id6463062900)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 小黑屋云写作 free?

小黑屋云写作 is free to download, with no in-app purchases.

### Is Amsau free?

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

### Do 小黑屋云写作 or Amsau have ads?

小黑屋云写作 shows ads; Amsau does not.

### Which is updated more often, 小黑屋云写作 or Amsau?

小黑屋云写作 ships an update fortnightly, and Amsau every 5 days. Most recently, 小黑屋云写作 was updated on November 6, 2026 and Amsau on November 7, 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.*