# Yomu vs Realbook

The clearest difference is in-app purchases: Realbook at none against Yomu's 3. Realbook also leads on update cadence (weekly vs every 4 months). Yomu's advantage is ads (none vs shown). On price, 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. Realbook asks for nothing beyond the download.

Yomu ships an update every 4 months, Realbook weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Yomu | Realbook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Weekly** |
| Size | 12 MB | 60 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jumpei Takiyasu](https://appshunter.io/developer/1550600314) | [WONJIN CHA](https://appshunter.io/developer/6792840591) |

## What reviewers say

### 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 |


### Realbook

[App page](https://appshunter.io/ios/app/realbook-epub-pdf-book-reader/id6796944523)

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

**In-app purchases:** none


## Frequently asked questions

### Is Yomu free?

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

### Is Realbook free?

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

### Do Yomu or Realbook have ads?

Realbook shows ads; Yomu does not.

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

Yomu ships an update every 4 months, and Realbook weekly. Most recently, Yomu was updated on October 25, 2026 and Realbook on October 24, 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.*