# BookPDF vs Yomu

The clearest difference is in-app purchases: BookPDF at none against Yomu's 3. BookPDF also leads on update cadence (every 2 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Yomu sells 3 in-app purchases, starting at $3.99 per month. BookPDF asks for nothing beyond the download.

BookPDF ships an update every 2 days, Yomu every 4 months. The most recent releases landed on October 11, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | BookPDF | Yomu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 months |
| Size | 2 MB | 12 MB |
| Requires iOS | 18 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuta Sugawara](https://appshunter.io/developer/1867695269) | [Jumpei Takiyasu](https://appshunter.io/developer/1550600314) |

## What reviewers say

### BookPDF

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Yomu

[App page](https://appshunter.io/ios/app/yomu-fast-pdf-reader/id6760102622)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yomu Pro Monthly | $3.99 | per month |
| Yomu Pro Yearly | $29.99 | per year |
| Yomu Unlimited | $9.99 | one-time |


## Frequently asked questions

### Is BookPDF free?

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

### Is Yomu free?

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

### Do BookPDF or Yomu have ads?

Neither BookPDF nor Yomu shows ads.

### Which is updated more often, BookPDF or Yomu?

BookPDF ships an update every 2 days, and Yomu every 4 months. Most recently, BookPDF was updated on October 11, 2026 and Yomu on October 22, 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.*