# Calibre ebook reader vs Sutra

The clearest difference is ads: Sutra at none against Calibre ebook reader's shown. Sutra also leads on monetization model (free vs free with in-app purchases). Calibre ebook reader's advantage is rating (4.8 vs 4.3). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Calibre ebook reader sells 4 in-app purchases, starting at $4.99 per month and Sutra sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Calibre ebook reader holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 14 and 17 respectively. Written reviews complicate that: 67% of Calibre ebook reader's written reviews are positive against 73% of Sutra's, so the app with the better star average is not the one people write more warmly about.

Calibre ebook reader ships an update every 9 days, Sutra weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Calibre ebook reader | Sutra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (14 ratings)](https://appshunter.io/ios/app/calibre-ebook-reader-pageo/id6759336810/reviews)** | [4.3 (17 ratings)](https://appshunter.io/ios/app/sutra-ebook-and-comic-reader/id6780096864/reviews) |
| Number of ratings | 14 | **17** |
| Positive reviews | 66.7% of reviews | **73.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 88 MB | 42 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VISIONCRAFT, SOCIEDAD LIMITADA](https://appshunter.io/developer/1473558735) | [Koustav Dasgupta](https://appshunter.io/developer/6772577121) |

## What reviewers say

### 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 |


### Sutra

[App page](https://appshunter.io/ios/app/sutra-ebook-and-comic-reader/id6780096864)

Access your entire book collection from various sources in one beautiful app. Enjoy a customizable reading experience with synced progress, bookmarks, and highlights across devices. Organize your library with series info, search, and collections.

**Highlights:** Connect Kavita, Calibre, and OPDS servers, EPUB and PDF reading with page-curl effect, Rich typography and reading themes, iCloud sync for progress, bookmarks, and highlights, Offline downloads, Highlighting and search functionality, Series grouping and collections

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |
| Sutra Pro | $6.99 | one-time |


## Frequently asked questions

### Is Calibre ebook reader free?

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

### Is Sutra free?

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

### Which has better reviews, Calibre ebook reader or Sutra?

Calibre ebook reader is rated higher. Calibre ebook reader averages 4.8 out of 5 from 14 ratings, while Sutra averages 4.3 from 17 ratings.

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

Calibre ebook reader shows ads; Sutra does not.

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

Calibre ebook reader ships an update every 9 days, and Sutra weekly. Most recently, Calibre ebook reader was updated on October 31, 2026 and Sutra on October 31, 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.*