# Libro vs Calibre ebook reader

The clearest difference is in-app purchases: Libro at none against Calibre ebook reader's 4. Libro also leads on ads (none vs shown) and iOS requirement (15.5 vs 18.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Calibre ebook reader sells 4 in-app purchases, starting at $4.99 per month. Libro asks for nothing beyond the download.

Libro ships an update fortnightly, Calibre ebook reader every 9 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Libro | Calibre ebook reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (13 ratings)](https://appshunter.io/ios/app/calibre-ebook-reader-pageo/id6759336810/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 284 MB | 88 MB |
| Requires iOS | **15.5** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gomoku Studio Pty Ltd](https://appshunter.io/developer/1268529274) | [VISIONCRAFT, SOCIEDAD LIMITADA](https://appshunter.io/developer/1473558735) |

## What reviewers say

### Libro

[App page](https://appshunter.io/ios/app/libro/id1548459750)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calibre ebook reader

[App page](https://appshunter.io/ios/app/calibre-ebook-reader-pageo/id6759336810)

Seamlessly sync your Calibre ebook library wirelessly to your iPhone. Convert various ebook formats to EPUB directly within the app and customize your reading experience with adjustable fonts, themes, and spacing. Listen to your books with text-to-speech functionality.

**Highlights:** Wireless Calibre library sync, Built-in ebook converter (PDF, MOBI, AZW, etc. to EPUB), Customizable reading experience (fonts, themes), Text-to-speech audiobook functionality, Import from cloud storage (Files, Dropbox, iCloud), Organize library by author, series, collection

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pageo Pro | $4.99 | per month |
| Pageo Pro | $4.99 | per month |
| Pageo Pro | $19.99 | per year |
| 1 Day of Pro | $0.99 | one-time |


## Frequently asked questions

### Is Libro free?

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

### Is Calibre ebook reader free?

Calibre ebook reader is free to download, with in-app purchases available.

### Do Libro or Calibre ebook reader have ads?

Calibre ebook reader shows ads; Libro does not.

### Which is updated more often, Libro or Calibre ebook reader?

Libro ships an update fortnightly, and Calibre ebook reader every 9 days. Most recently, Libro was updated on October 25, 2026 and Calibre ebook reader on October 28, 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.*