# 合同管家 vs 铁矿石现货平台(北铁中心COREX)

The clearest difference is iOS requirement: 合同管家 at 11.0 against 铁矿石现货平台(北铁中心COREX)'s 13.0. 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.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 合同管家 | 铁矿石现货平台(北铁中心COREX) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Size | 6 MB | 41 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xiamen Yinleme Information Technology Co., Ltd](https://appshunter.io/developer/1502666205) | [Beijing Iron Ore Trading Center Co., Ltd.](https://appshunter.io/developer/1058284526) |

## What reviewers say

### 合同管家

[App page](https://appshunter.io/ios/app/id1502666206)

**Features:** macOS Compatibility

**In-app purchases:** none


### 铁矿石现货平台(北铁中心COREX)

[App page](https://appshunter.io/ios/app/corex/id1530315235)

**In-app purchases:** none


## Frequently asked questions

### Is 合同管家 free?

合同管家 is free to download, with no in-app purchases.

### Is 铁矿石现货平台(北铁中心COREX) free?

铁矿石现货平台(北铁中心COREX) is free to download, with no in-app purchases.

### Do 合同管家 or 铁矿石现货平台(北铁中心COREX) have ads?

Neither 合同管家 nor 铁矿石现货平台(北铁中心COREX) shows ads.

### Which is updated more often, 合同管家 or 铁矿石现货平台(北铁中心COREX)?

合同管家 ships an update every 4 months, and 铁矿石现货平台(北铁中心COREX) every 4 months. Most recently, 合同管家 was updated on October 6, 2026 and 铁矿石现货平台(北铁中心COREX) on October 13, 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.*