# Spine vs tsundoku reader

The clearest difference is iOS requirement: tsundoku reader at 16.0 against Spine's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Spine | tsundoku reader |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | — | Every 5 months |
| Monetization | — | Free |
| Size | 2 MB | 207 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thought Tides LLC](https://appshunter.io/developer/1677066161) | [Evans Yu](https://appshunter.io/developer/1876629445) |

## What reviewers say

### Spine

[App page](https://appshunter.io/ios/app/spine-chapter-reader/id6757416958)

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Spine free?

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

### Is tsundoku reader free?

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

### Do Spine or tsundoku reader have ads?

Neither Spine nor tsundoku reader shows ads.

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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.*