# OCS专家 vs 工程小助

The clearest difference is iOS requirement: OCS专家 at 9.0 against 工程小助'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.

OCS专家 ships an update every 3 weeks, 工程小助 every 4 weeks. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | OCS专家 | 工程小助 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Size | 7 MB | 71 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Reformer Holding Co., Ltd.](https://appshunter.io/developer/794153220) | [杭州随助科技有限公司](https://appshunter.io/developer/1456753656) |

## What reviewers say

### OCS专家

[App page](https://appshunter.io/ios/app/ocs/id1476005795)

**Features:** macOS Compatibility

**In-app purchases:** none


### 工程小助

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OCS专家 free?

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

### Is 工程小助 free?

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

### Do OCS专家 or 工程小助 have ads?

Neither OCS专家 nor 工程小助 shows ads.

### Which is updated more often, OCS专家 or 工程小助?

OCS专家 ships an update every 3 weeks, and 工程小助 every 4 weeks. Most recently, OCS专家 was updated on November 3, 2026 and 工程小助 on October 27, 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.*