# 买卖不锈钢 vs 钢管圈

The clearest difference is update cadence: 钢管圈 at every 5 weeks against 买卖不锈钢's every 8 months. 钢管圈 also leads on iOS requirement (10.0 vs 12.0). 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.

买卖不锈钢 ships an update every 8 months, 钢管圈 every 5 weeks. The most recent releases landed on October 29, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 买卖不锈钢 | 钢管圈 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 weeks** |
| Size | 43 MB | 127 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wuxi Geili culture media Co., Ltd](https://appshunter.io/developer/768594400) | [Hebei ZaiXun Network Technology Co., Ltd.](https://appshunter.io/developer/994393282) |

## What reviewers say

### 买卖不锈钢

[App page](https://appshunter.io/ios/app/id768594397)

**Features:** macOS Compatibility

**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 买卖不锈钢 free?

买卖不锈钢 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 买卖不锈钢 or 钢管圈 have ads?

Neither 买卖不锈钢 nor 钢管圈 shows ads.

### Which is updated more often, 买卖不锈钢 or 钢管圈?

买卖不锈钢 ships an update every 8 months, and 钢管圈 every 5 weeks. Most recently, 买卖不锈钢 was updated on October 29, 2026 and 钢管圈 on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*