# Leviathan vs BookShelves eBook Reader

The clearest difference is price: BookShelves eBook Reader at Free against Leviathan's $3.99. BookShelves eBook Reader also leads on update cadence (weekly vs every 11 months). Leviathan's advantage is in-app purchases (none vs 4) and iOS requirement (15.6 vs 17.4). On ads and device support there is nothing between them.

BookShelves eBook Reader is free to download; Leviathan costs $3.99 up front. BookShelves eBook Reader sells 4 one-off in-app purchases. Leviathan asks for nothing beyond the download.

Leviathan ships an update every 11 months, BookShelves eBook Reader weekly. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Leviathan | BookShelves eBook Reader |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[3.9 (15 ratings)](https://appshunter.io/ios/app/bookshelves-ebook-reader/id6756848973/reviews)** |
| Number of ratings | — | **15** |
| Positive reviews | — | 65.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 49 MB | 56 MB |
| Requires iOS | **15.6** | 17.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 12+ | 4+ |
| Developer | [Zarfhome Software Consulting](https://appshunter.io/developer/457956106) | [CPE Verm. GmbH](https://appshunter.io/developer/1863249600) |

## What reviewers say

### Leviathan

[App page](https://appshunter.io/ios/app/leviathan-interactive-comic/id6444325089)

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

**In-app purchases:** none


### BookShelves eBook Reader

[App page](https://appshunter.io/ios/app/bookshelves-ebook-reader/id6756848973)

This app allows you to read EPUB, PDF, and comic books with access to over 1.5 million free public domain books. Organize your library, customize your reading experience with multiple themes and fonts, and sync your progress across devices.

**Highlights:** 1.5 million+ free books, EPUB, PDF, and comic reader, Customizable themes and fonts, iCloud sync across devices, Smart library management, Highlighting and note-taking, Export highlights

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $2.99 | one-time |
| Medium Tip | $3.99 | one-time |
| Large Tip | $8.99 | one-time |
| Unlock Pro | $9.99 | one-time |


## Frequently asked questions

### Is Leviathan free?

Leviathan costs $3.99, with no in-app purchases.

### Is BookShelves eBook Reader free?

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

### Do Leviathan or BookShelves eBook Reader have ads?

Neither Leviathan nor BookShelves eBook Reader shows ads.

### Which is updated more often, Leviathan or BookShelves eBook Reader?

Leviathan ships an update every 11 months, and BookShelves eBook Reader weekly. Most recently, Leviathan was updated on October 1, 2026 and BookShelves eBook Reader on October 14, 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.*