# LayMatic vs TwinPDFViewer

The clearest difference is ads: TwinPDFViewer at none against LayMatic's shown. LayMatic's advantage is update cadence (every 4 weeks vs every 14 months) and iOS requirement (12 vs 18.2). On price, 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.

LayMatic ships an update every 4 weeks, TwinPDFViewer every 14 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | LayMatic | TwinPDFViewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 weeks** | Every 14 months |
| Size | 38 MB | 10 MB |
| Requires iOS | **12** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Irsadi Soganci](https://appshunter.io/developer/1787431721) | [Daichi Hayashi](https://appshunter.io/developer/1822604563) |

## What reviewers say

### LayMatic

[App page](https://appshunter.io/ios/app/laymatic/id6743007630)

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

**In-app purchases:** none


### TwinPDFViewer

[App page](https://appshunter.io/ios/app/twinpdfviewer/id6752489694)

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

**In-app purchases:** none


## Frequently asked questions

### Is LayMatic free?

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

### Is TwinPDFViewer free?

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

### Do LayMatic or TwinPDFViewer have ads?

LayMatic shows ads; TwinPDFViewer does not.

### Which is updated more often, LayMatic or TwinPDFViewer?

LayMatic ships an update every 4 weeks, and TwinPDFViewer every 14 months. Most recently, LayMatic was updated on October 30, 2026 and TwinPDFViewer on October 30, 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.*