# PDF Reader vs Modysign

The clearest difference is in-app purchases: PDF Reader at none against Modysign's 1. PDF Reader also leads on update cadence (daily vs every 4 days) and iOS requirement (13.0 vs 15.0). Modysign's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Modysign sells 1 in-app purchase, starting at $2.00 per month. PDF Reader asks for nothing beyond the download.

PDF Reader ships an update daily, Modysign every 4 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PDF Reader | Modysign |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 4 days |
| Size | 37 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Abdelaziz Boukhris](https://appshunter.io/developer/1875747023) | [Romain Fernandes lopes](https://appshunter.io/developer/1893140467) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-pdf-pro-editor/id6758962655)

**Features:** macOS Compatibility

**In-app purchases:** none


### Modysign

[App page](https://appshunter.io/ios/app/modysign-sign-and-edit-pdfs/id6762151674)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mody-Sign Premium Monthly | $2.00 | per month |


## Frequently asked questions

### Is PDF Reader free?

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

### Is Modysign free?

Modysign is free to download, with in-app purchases available.

### Do PDF Reader or Modysign have ads?

PDF Reader shows ads; Modysign does not.

### Which is updated more often, PDF Reader or Modysign?

PDF Reader ships an update daily, and Modysign every 4 days. Most recently, PDF Reader was updated on October 28, 2026 and Modysign on October 31, 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.*