# 工程通 vs 钢管圈

The clearest difference is update cadence: 钢管圈 at every 5 weeks against 工程通's every 3 months. 钢管圈 also leads on iOS requirement (10.0 vs 15.0). 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.

工程通 ships an update every 3 months, 钢管圈 every 5 weeks. The most recent releases landed on October 29, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 工程通 | 钢管圈 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 140 MB | 127 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [奇鱼时代网络技术(北京)有限公司](https://appshunter.io/developer/1450908662) | [Hebei ZaiXun Network Technology Co., Ltd.](https://appshunter.io/developer/994393282) |

## What reviewers say

### 工程通

[App page](https://appshunter.io/ios/app/id1450908663)

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

**In-app purchases:** none


### 钢管圈

[App page](https://appshunter.io/ios/app/id1502328002)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 工程通 free?

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

### Is 钢管圈 free?

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

### Do 工程通 or 钢管圈 have ads?

Neither 工程通 nor 钢管圈 shows ads.

### Which is updated more often, 工程通 or 钢管圈?

工程通 ships an update every 3 months, and 钢管圈 every 5 weeks. Most recently, 工程通 was updated on October 29, 2026 and 钢管圈 on October 18, 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.*