# BookPDF vs Plain Reader

The clearest difference is in-app purchases: BookPDF at none against Plain Reader's 4. BookPDF also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Plain Reader sells 4 in-app purchases, starting at $0.99 per month. BookPDF asks for nothing beyond the download.

BookPDF ships an update every 2 days, Plain Reader every 3 days. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | BookPDF | Plain Reader |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 45 MB |
| Requires iOS | 18 | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuta Sugawara](https://appshunter.io/developer/1867695269) | [OurBeom](https://appshunter.io/developer/1571312317) |

## What reviewers say

### BookPDF

[App page](https://appshunter.io/ios/app/bookpdf/id6758102700)

**Features:** macOS Compatibility

**In-app purchases:** none


### Plain Reader

[App page](https://appshunter.io/ios/app/plain-reader/id6818729882)

This app provides a distraction-free reading experience for various file formats including EPUB, TXT, PDF, and comics. It allows direct access to files from cloud storage or external drives without importing or creating copies, offering customizable reading settings and text-to-speech functionality.

**Highlights:** Read directly from Files, iCloud Drive, USB, Customizable text and theme settings, Text-to-speech in 31 languages, Supports ZIP and CBZ archives, Right-to-left reading for manga, PDF text selection and search, Distraction-free reading interface

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plain Reader Pro (Monthly) | $0.99 | per month |
| Plain Reader Pro (Yearly) | $6.99 | per year |
| Plain Reader Pro | $2.99 | one-time |
| Plain Reader Pro (Lifetime) | $12.99 | one-time |


## Frequently asked questions

### Is BookPDF free?

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

### Is Plain Reader free?

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

### Do BookPDF or Plain Reader have ads?

Plain Reader shows ads; BookPDF does not.

### Which is updated more often, BookPDF or Plain Reader?

BookPDF ships an update every 2 days, and Plain Reader every 3 days. Most recently, BookPDF was updated on October 31, 2026 and Plain Reader on November 1, 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.*