# Right PDF Reader vs PDF Book Reader

The clearest difference is rating: Right PDF Reader at 4.6 against PDF Book Reader's 3.9. Right PDF Reader also leads on in-app purchases (none vs 2) and ads (none vs shown). PDF Book Reader's advantage is update cadence (every 5 days vs every 11 months) and ratings volume (31 vs 5). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Book Reader sells 2 in-app purchases, starting at $3.99 per month. Right PDF Reader asks for nothing beyond the download.

Right PDF Reader holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: PDF Book Reader has 31 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 92% of Right PDF Reader's written reviews are positive against 61% of PDF Book Reader's.

Right PDF Reader ships an update every 11 months, PDF Book Reader every 5 days. The most recent releases landed on September 27, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Right PDF Reader | PDF Book Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/right-pdf-reader/id690338821/reviews)** | [3.9 (31 ratings)](https://appshunter.io/ios/app/pdf-book-reader/id1576631236/reviews) |
| Number of ratings | 5 | **31** |
| Positive reviews | **92.3% of reviews** | 61.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 79 MB | 46 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZEON Corp](https://appshunter.io/developer/528554283) | [B TO J PTY LTD](https://appshunter.io/developer/569308231) |

## What reviewers say

### Right PDF Reader

[App page](https://appshunter.io/ios/app/right-pdf-reader/id690338821)

This application provides robust PDF viewing, annotation, and management tools. It allows users to organize, share, and sign documents with a user-friendly interface and advanced features.

**Highlights:** Fast PDF viewing, Annotation tools (highlight, draw, text), Document organization with folders, Cloud storage integration (Dropbox, WebDAV), Handwritten signature creation, Form filling, Password protection

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Book Reader

[App page](https://appshunter.io/ios/app/pdf-book-reader/id1576631236)

Easily read, manage, and annotate PDF books and documents. This app offers a smooth reading experience, powerful annotation tools, and seamless cloud integration. Organize, search, and share your PDFs with ease.

**Highlights:** Natural PDF reading and navigation, PDF bookmarking and annotation, Text search and OCR extraction, PDF merging and page rearrangement, Cloud storage integration (Google Drive, Dropbox, iCloud), File import and export via cloud and Files app, PDF sharing and printing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $3.99 | per month |
| 1 Year Subscription | $28.99 | per year |


## Frequently asked questions

### Is Right PDF Reader free?

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

### Is PDF Book Reader free?

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

### Which has better reviews, Right PDF Reader or PDF Book Reader?

Right PDF Reader is rated higher. Right PDF Reader averages 4.6 out of 5 from 5 ratings, while PDF Book Reader averages 3.9 from 31 ratings.

### Do Right PDF Reader or PDF Book Reader have ads?

PDF Book Reader shows ads; Right PDF Reader does not.

### Which is updated more often, Right PDF Reader or PDF Book Reader?

Right PDF Reader ships an update every 11 months, and PDF Book Reader every 5 days. Most recently, Right PDF Reader was updated on September 27, 2026 and PDF Book Reader on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*