# pdf vs PDF Book Reader

The clearest difference is update cadence: PDF Book Reader at every 5 days against pdf's every 5 weeks. PDF Book Reader also leads on review sentiment (61% vs 49%) and device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. pdf sells 3 one-off in-app purchases and PDF Book Reader sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.0 for pdf against 3.9 for PDF Book Reader. Both are backed by a comparable volume of ratings — 17 and 31 respectively. Written reviews are what separate them: 49% of pdf's written reviews are positive against 61% of PDF Book Reader's.

pdf ships an update every 5 weeks, PDF Book Reader every 5 days. The most recent releases landed on July 10, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | pdf | PDF Book Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (17 ratings)](https://appshunter.io/ios/app/pdf-notes-for-iphone/id694946243/reviews)** | [3.9 (31 ratings)](https://appshunter.io/ios/app/pdf-book-reader/id1576631236/reviews) |
| Number of ratings | 17 | **31** |
| Positive reviews | 48.6% of reviews | **61.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 109 MB | 46 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AMuseTec Co., Ltd.](https://appshunter.io/developer/342152781) | [B TO J PTY LTD](https://appshunter.io/developer/569308231) |

## What reviewers say

### pdf

[App page](https://appshunter.io/ios/app/pdf-notes-for-iphone/id694946243)

This app allows you to read and annotate PDF files on your iPhone with fast page turning and convenient finger-writing tools. Easily import PDFs and share your notes via email or cloud services.

**Highlights:** Fast PDF display and page turning, Finger-writing and annotation tools, Import PDFs via Dropbox, Email, iTunes, Categorized bookshelves with search, Export annotated PDFs, Password-protected bookshelves

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2-Month Pass | $0.99 | one-time |
| 1-Year Path | $2.99 | one-time |
| Lifetime License | $4.99 | one-time |


### 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 pdf free?

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

### Is PDF Book Reader free?

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

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

pdf is rated higher. pdf averages 4.0 out of 5 from 17 ratings, while PDF Book Reader averages 3.9 from 31 ratings.

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

Both pdf and PDF Book Reader show ads.

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

pdf ships an update every 5 weeks, and PDF Book Reader every 5 days. Most recently, pdf was updated on July 10, 2026 and PDF Book Reader on September 13, 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.*