# 工业元数 vs 工部商书

The clearest difference is update cadence: 工部商书 at fortnightly against 工业元数's monthly. 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.

工业元数 ships an update monthly, 工部商书 fortnightly. The most recent releases landed on September 14, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | 工业元数 | 工部商书 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 69 MB | 112 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [上电智联科技(江苏)有限公司](https://appshunter.io/developer/1585904658) | [江苏蒙东软件开发有限公司](https://appshunter.io/developer/1690325798) |

## What reviewers say

### 工业元数

[App page](https://appshunter.io/ios/app/id1585904656)

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

**In-app purchases:** none


### 工部商书

[App page](https://appshunter.io/ios/app/id6449733237)

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

**In-app purchases:** none


## Frequently asked questions

### Is 工业元数 free?

工业元数 is free to download, with no in-app purchases.

### Is 工部商书 free?

工部商书 is free to download, with no in-app purchases.

### Do 工业元数 or 工部商书 have ads?

Neither 工业元数 nor 工部商书 shows ads.

### Which is updated more often, 工业元数 or 工部商书?

工业元数 ships an update monthly, and 工部商书 fortnightly. Most recently, 工业元数 was updated on September 14, 2026 and 工部商书 on September 1, 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.*