# PDF Reader vs ZenShield

The clearest difference is ads: ZenShield at none against PDF Reader's shown. ZenShield also leads on update cadence (daily vs every 4 months). PDF Reader's advantage is iOS requirement (14.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Reader sells 3 in-app purchases, starting at $2.49 per 7 days and ZenShield sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PDF Reader ships an update every 4 months, ZenShield daily. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PDF Reader | ZenShield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (53 ratings)](https://appshunter.io/ios/app/pdf-reader-pdf-viewer-edit/id6448322721/reviews)** | — |
| Number of ratings | **53** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 3 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Mohit Rudani](https://appshunter.io/developer/1673702969) | [Africapps LLC](https://appshunter.io/developer/989628166) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-pdf-viewer-edit/id6448322721)

This application allows users to read, edit, and manage PDF files on their mobile devices. It offers offline viewing for PDFs, Word, Excel, and PowerPoint documents, along with features like bookmarking and file renaming. Enhance your productivity with this essential document management tool.

**Highlights:** View local PDF files, Load files from Files app, Save and rename PDF files, Share PDFs easily, Bookmark PDF pages, Offline document viewing, Dark Mode for reading

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly   1 Week | $2.49 | per 7 days |
| Monthly   1 Month | $5.99 | per month |
| Yearly   1 Year | $24.99 | per year |


### ZenShield

[App page](https://appshunter.io/ios/app/zenshield-anti-doomscrolling/id6807668620)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZenShield Pro Monthly | $4.99 | per month |
| ZenShield Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is PDF Reader free?

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

### Is ZenShield free?

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

### Do PDF Reader or ZenShield have ads?

PDF Reader shows ads; ZenShield does not.

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

PDF Reader ships an update every 4 months, and ZenShield daily. Most recently, PDF Reader was updated on October 24, 2026 and ZenShield on October 9, 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.*