# 石化招采 vs 三局商链通

The clearest difference is iOS requirement: 石化招采 at 10.0 against 三局商链通's 12.4. 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.

石化招采 ships an update every 2 months, 三局商链通 every 6 weeks. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 石化招采 | 三局商链通 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 95 MB | 84 MB |
| Requires iOS | **10.0** | 12.4 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [China Petrochemical Corporation](https://appshunter.io/developer/1404188289) | [中建三局云采供应链有限公司](https://appshunter.io/developer/1627379887) |

## What reviewers say

### 石化招采

[App page](https://appshunter.io/ios/app/id6444849755)

**Features:** macOS Compatibility

**In-app purchases:** none


### 三局商链通

[App page](https://appshunter.io/ios/app/id6449460063)

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

**In-app purchases:** none


## Frequently asked questions

### Is 石化招采 free?

石化招采 is free to download, with no in-app purchases.

### Is 三局商链通 free?

三局商链通 is free to download, with no in-app purchases.

### Do 石化招采 or 三局商链通 have ads?

Neither 石化招采 nor 三局商链通 shows ads.

### Which is updated more often, 石化招采 or 三局商链通?

石化招采 ships an update every 2 months, and 三局商链通 every 6 weeks. Most recently, 石化招采 was updated on September 15, 2026 and 三局商链通 on September 24, 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.*