# tsundoku reader vs Chapter

The clearest difference is in-app purchases: tsundoku reader at none against Chapter's 3. tsundoku reader also leads on iOS requirement (16.0 vs 26.0). Chapter's advantage is update cadence (fortnightly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Chapter sells 3 in-app purchases, starting at $1.99 per month. tsundoku reader asks for nothing beyond the download.

tsundoku reader ships an update every 5 months, Chapter fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | tsundoku reader | Chapter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tsundoku-reader/id6759117674/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 207 MB | 37 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Evans Yu](https://appshunter.io/developer/1876629445) | [Sergiu Prodan](https://appshunter.io/developer/1531741524) |

## What reviewers say

### tsundoku reader

[App page](https://appshunter.io/ios/app/tsundoku-reader/id6759117674)

This app offers a free, universal EPUB reader optimized for quick Japanese reading. It features an integrated, powerful Japanese dictionary and customizable reading settings for an enhanced on-the-go experience.

**Highlights:** Universal EPUB reader, Integrated Japanese dictionary, Paginated and continuous scroll modes, Autosave and progress tracking, Customizable font size and themes, Toggleable furigana, Vertical/horizontal text direction

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

**In-app purchases:** none


### Chapter

[App page](https://appshunter.io/ios/app/chapter-epub-and-pdf-reader/id6759279740)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chapter Pro Monthly | $1.99 | per month |
| Chapter Pro Yearly | $19.99 | per year |
| Chapter Pro | $9.99 | one-time |


## Frequently asked questions

### Is tsundoku reader free?

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

### Is Chapter free?

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

### Do tsundoku reader or Chapter have ads?

Neither tsundoku reader nor Chapter shows ads.

### Which is updated more often, tsundoku reader or Chapter?

tsundoku reader ships an update every 5 months, and Chapter fortnightly. Most recently, tsundoku reader was updated on October 24, 2026 and Chapter 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.*