# Book vs Bibliotheca Library

The clearest difference is ads: Bibliotheca Library at none against Book's shown. Bibliotheca Library also leads on update cadence (every 5 days vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Book sells 1 one-off in-app purchase and Bibliotheca Library sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Book ships an update every 6 months, Bibliotheca Library every 5 days. The most recent releases landed on October 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Book | Bibliotheca Library |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bibliotheca-library/id6757285627/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 60 MB | 82 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TATSUO NAKANO](https://appshunter.io/developer/1846200191) | [The Wolpertinger Company](https://appshunter.io/developer/1847417788) |

## What reviewers say

### Book

[App page](https://appshunter.io/ios/app/book-lifecycle-manager/id6757215528)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


### Bibliotheca Library

[App page](https://appshunter.io/ios/app/bibliotheca-library/id6757285627)

Organize your personal book collection, track reading progress towards goals, and monitor reading time with a built-in timer. Connect with friends through social reading features like reading circles and challenges. Enjoy a beautiful, private, and ad-free experience with cloud backup and offline functionality.

**Highlights:** Organize book collection, Track reading progress, Set reading goals, Built-in reading timer, Social reading features, Cloud backup, Offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $3.99 | per month |
| Premium Annual | $29.99 | per year |


## Frequently asked questions

### Is Book free?

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

### Is Bibliotheca Library free?

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

### Do Book or Bibliotheca Library have ads?

Book shows ads; Bibliotheca Library does not.

### Which is updated more often, Book or Bibliotheca Library?

Book ships an update every 6 months, and Bibliotheca Library every 5 days. Most recently, Book was updated on October 25, 2026 and Bibliotheca Library on September 18, 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.*