# PDF Book Reader vs Focsy

The clearest difference is ads: Focsy at none against PDF Book Reader's shown. PDF Book Reader's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. PDF Book Reader sells 2 in-app purchases, starting at $3.99 per month and Focsy sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

PDF Book Reader ships an update every 5 days, Focsy every 4 days. The most recent releases landed on October 19, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | PDF Book Reader | Focsy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (32 ratings)](https://appshunter.io/ios/app/pdf-book-reader/id1576631236/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 63.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 46 MB | 117 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [B TO J PTY LTD](https://appshunter.io/developer/569308231) | [Crowncast Labs LLP](https://appshunter.io/developer/1822490352) |

## What reviewers say

### 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 |


### Focsy

[App page](https://appshunter.io/ios/app/focsy-deep-work/id6761205050)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focsy Pro Monthly | $9.99 | per month |
| Focsy Pro Yearly | $34.99 | per year |
| Focsy Pro Yearly | $59.99 | per year |


## Frequently asked questions

### Is PDF Book Reader free?

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

### Is Focsy free?

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

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

PDF Book Reader shows ads; Focsy does not.

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

PDF Book Reader ships an update every 5 days, and Focsy every 4 days. Most recently, PDF Book Reader was updated on October 19, 2026 and Focsy on September 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.*