# 工程师e家 vs 工控检索

The clearest difference is in-app purchases: 工控检索 at none against 工程师e家's 3. 工控检索 also leads on ads (none vs shown). On price, update cadence, 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. 工控检索 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 工程师e家 | 工控检索 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6740188293/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Size | 61 MB | 133 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jinan Tailing Automation Technology Co., Ltd.](https://appshunter.io/developer/1618634520) | [菊 张](https://appshunter.io/developer/1469670168) |

## What reviewers say

### 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 |


### 工控检索

[App page](https://appshunter.io/ios/app/id6740188293)

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

**In-app purchases:** none


## Frequently asked questions

### Is 工程师e家 free?

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

### Is 工控检索 free?

工控检索 is free to download, with no in-app purchases.

### Do 工程师e家 or 工控检索 have ads?

工程师e家 shows ads; 工控检索 does not.

### Which is updated more often, 工程师e家 or 工控检索?

工程师e家 ships an update every 2 months, and 工控检索 every 2 months. Most recently, 工程师e家 was updated on October 27, 2026 and 工控检索 on October 25, 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.*