# 工程小助 vs 傲蓝洗晴v20

The clearest difference is iOS requirement: 工程小助 at 12.0 against 傲蓝洗晴v20's 15.0. 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.

工程小助 ships an update every 4 weeks, 傲蓝洗晴v20 every 3 weeks. The most recent releases landed on May 17, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | 工程小助 | 傲蓝洗晴v20 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Size | 71 MB | 119 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杭州随助科技有限公司](https://appshunter.io/developer/1456753656) | [Guangzhou Aolan Software Technology Co., Ltd.](https://appshunter.io/developer/1472967785) |

## What reviewers say

### 工程小助

[App page](https://appshunter.io/ios/app/id1562070446)

**Features:** macOS Compatibility

**In-app purchases:** none


### 傲蓝洗晴v20

[App page](https://appshunter.io/ios/app/v20/id6744131355)

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

**In-app purchases:** none


## Frequently asked questions

### Is 工程小助 free?

工程小助 is free to download, with no in-app purchases.

### Is 傲蓝洗晴v20 free?

傲蓝洗晴v20 is free to download, with no in-app purchases.

### Do 工程小助 or 傲蓝洗晴v20 have ads?

Neither 工程小助 nor 傲蓝洗晴v20 shows ads.

### Which is updated more often, 工程小助 or 傲蓝洗晴v20?

工程小助 ships an update every 4 weeks, and 傲蓝洗晴v20 every 3 weeks. Most recently, 工程小助 was updated on May 17, 2026 and 傲蓝洗晴v20 on September 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.*