# PDF Studio ‎ vs PLC Signal Explorer

The clearest difference is iOS requirement: PDF Studio ‎ at 13.0 against PLC Signal Explorer's 16.6. 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.

## The numbers

| Metric | PDF Studio ‎ | PLC Signal Explorer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 46 MB | 8 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hrishi Suthar](https://appshunter.io/developer/1660005858) | [Yagoub Dagriri](https://appshunter.io/developer/1823377277) |

## What reviewers say

### PDF Studio ‎

[App page](https://appshunter.io/ios/app/pdf-studio/id6757748573)

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

**In-app purchases:** none


### PLC Signal Explorer

[App page](https://appshunter.io/ios/app/plc-signal-explorer/id6759815466)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Studio ‎ free?

PDF Studio ‎ is free to download, with no in-app purchases.

### Is PLC Signal Explorer free?

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

### Do PDF Studio ‎ or PLC Signal Explorer have ads?

Neither PDF Studio ‎ nor PLC Signal Explorer shows ads.

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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.*