# 考试机 vs 轻连PLC

The clearest difference is update cadence: 轻连PLC at every 3 weeks against 考试机's every 6 weeks. 考试机's advantage is iOS requirement (12.4 vs 15.0). 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.

考试机 ships an update every 6 weeks, 轻连PLC every 3 weeks. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 考试机 | 轻连PLC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 43 MB | 36 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [beijing cloud-swing co-net Technology Co. Ltd](https://appshunter.io/developer/1274917423) | [北京麦乐程物联技术有限公司](https://appshunter.io/developer/1780034322) |

## What reviewers say

### 考试机

[App page](https://appshunter.io/ios/app/id1466021952)

**Features:** macOS Compatibility

**In-app purchases:** none


### 轻连PLC

[App page](https://appshunter.io/ios/app/plc/id6741800023)

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

**In-app purchases:** none


## Frequently asked questions

### Is 考试机 free?

考试机 is free to download, with no in-app purchases.

### Is 轻连PLC free?

轻连PLC is free to download, with no in-app purchases.

### Do 考试机 or 轻连PLC have ads?

Neither 考试机 nor 轻连PLC shows ads.

### Which is updated more often, 考试机 or 轻连PLC?

考试机 ships an update every 6 weeks, and 轻连PLC every 3 weeks. Most recently, 考试机 was updated on October 14, 2026 and 轻连PLC 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.*