# 掌上汇川 vs 工程师e家

The clearest difference is in-app purchases: 掌上汇川 at none against 工程师e家's 3. 掌上汇川 also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 工程师e家 sells 3 one-off in-app purchases. 掌上汇川 asks for nothing beyond the download.

掌上汇川 ships an update every 3 weeks, 工程师e家 every 2 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 掌上汇川 | 工程师e家 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/id1633403164/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 89 MB | 61 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [苏州汇川技术有限公司](https://appshunter.io/developer/1441943965) | [Jinan Tailing Automation Technology Co., Ltd.](https://appshunter.io/developer/1618634520) |

## What reviewers say

### 掌上汇川

[App page](https://appshunter.io/ios/app/id1633403164)

**Features:** macOS Compatibility

**In-app purchases:** none


### 工程师e家

[App page](https://appshunter.io/ios/app/e/id1641033041)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 资料年会员 | $3.99 | one-time |
| 资料永久会员 | $12.99 | one-time |
| 视频永久会员 | $39.99 | one-time |


## Frequently asked questions

### Is 掌上汇川 free?

掌上汇川 is free to download, with no in-app purchases.

### Is 工程师e家 free?

工程师e家 is free to download, with in-app purchases available.

### Do 掌上汇川 or 工程师e家 have ads?

工程师e家 shows ads; 掌上汇川 does not.

### Which is updated more often, 掌上汇川 or 工程师e家?

掌上汇川 ships an update every 3 weeks, and 工程师e家 every 2 months. Most recently, 掌上汇川 was updated on October 24, 2026 and 工程师e家 on October 27, 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.*