# PocketBook Reader vs Calibre Connector

The clearest difference is rating: PocketBook Reader at 4.5 against Calibre Connector's 2.4. PocketBook Reader also leads on review sentiment (54% vs 23%) and ratings volume (9.8K vs 13). Calibre Connector's advantage is in-app purchases (none vs 56) and update cadence (every 4 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. PocketBook Reader sells 41 one-off in-app purchases. Calibre Connector asks for nothing beyond the download.

PocketBook Reader holds the better App Store score, 4.5 against 2.4. That said, the two scores are not equally well evidenced: PocketBook Reader has 9.8K ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 54% of PocketBook Reader's written reviews are positive against 23% of Calibre Connector's.

PocketBook Reader ships an update every 2 months, Calibre Connector every 4 days. The most recent releases landed on September 24, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | PocketBook Reader | Calibre Connector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (9.8K ratings)](https://appshunter.io/ios/app/pocketbook-reader/id805488884/reviews)** | [2.4 (13 ratings)](https://appshunter.io/ios/app/calibre-connector/id6477761553/reviews) |
| Number of ratings | **9.8K** | 13 |
| Positive reviews | **54.5% of reviews** | 23.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#155** | — |
| Size | 106 MB | 3 MB |
| Requires iOS | **13.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Pocketbook International SA](https://appshunter.io/developer/1536135171) | [Phillip Walker](https://appshunter.io/developer/1723891603) |

## What reviewers say

### PocketBook Reader

[App page](https://appshunter.io/ios/app/pocketbook-reader/id805488884)

**Currently charting:** #155 Top Free · Book (US App Store)

This app is a versatile reader supporting 26 book and audio formats, including EPUB, PDF, and audiobooks. It offers features like PDF reflow, text-to-speech, cloud synchronization, and extensive customization options for a comfortable reading experience.

**Highlights:** Supports 26 book and audio formats, PDF Reflow function, Text-to-speech engine, Cloud synchronization service, Customizable interface and reading settings, Adobe DRM support

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

**In-app purchases (41)**

| Purchase | Price | Billing |
| --- | --- | --- |
| eBook | $0.99 | one-time |
| eBook (class A) | $0.99 | one-time |
| eBook | $1.99 | one-time |
| eBook (class B) | $1.99 | one-time |
| eBook | $2.95 | one-time |
| eBook | $2.99 | one-time |
| eBook (class C) | $2.99 | one-time |
| eBook | $3.99 | one-time |
| eBook: type 4.79 | $3.99 | one-time |
| eBook: type 4.19 | $3.99 | one-time |
| eBook (class D) | $3.99 | one-time |
| eBook (class Alt5) | $4.99 | one-time |
| eBook: type 5.39 | $4.99 | one-time |
| eBook (class F) | $4.99 | one-time |
| eBook: type 5.89 | $4.99 | one-time |
| eBook | $4.99 | one-time |
| eBook: type 5.09 | $4.99 | one-time |
| eBook (class G) | $5.99 | one-time |
| eBook | $5.99 | one-time |
| eBook: type 7.09 | $5.99 | one-time |
| eBook: type 7.19 | $5.99 | one-time |
| eBook: type 8.29 | $6.99 | one-time |
| eBook: type 7.59 | $6.99 | one-time |
| eBook | $7.99 | one-time |
| eBook: type 8.89 | $7.99 | one-time |
| eBook (class J) | $8.99 | one-time |
| eBook | $8.99 | one-time |
| eBook | $9.90 | one-time |
| eBook | $9.99 | one-time |
| eBook (class L) | $10.99 | one-time |
| eBook: type 13.9 | $11.90 | one-time |
| eBook | $11.99 | one-time |
| eBook: type 12.99 | $11.99 | one-time |
| eBook | $12.99 | one-time |
| eBook (class N) | $12.99 | one-time |
| eBook (class O) | $13.99 | one-time |
| eBook: type 17.9 | $14.90 | one-time |
| eBook | $14.99 | one-time |
| eBook (class R) | $16.99 | one-time |
| eBook (class T) | $18.99 | one-time |
| eBook (class W) | $21.99 | one-time |

**What reviewers like**

- 👍 Convenient reading experience
- 🚀 Smooth scrolling
- 💡 Customizable settings (font, margin, etc.)
- 🔒 Supports DRM-protected content
- 👍 Intuitive user interface

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🐛 Unreliable cloud sync
- 🐛 Inconsistent page rendering
- 🐛 Buggy text highlighting and annotation
- 🐛 Slow loading times

**Reported bugs**

- Books disappearing from library after login issues
- Inability to open DRM-protected PDFs
- Inconsistent behavior when switching between portrait and landscape modes
- Text-to-speech voice quality issues

**Requested features**

- Ability to organize books into custom folders
- Option to disable quick action zones
- Improved text-to-speech controls (seek, pause, etc.)
- Support for handwritten annotations with Apple Pencil
- Faster page turning and scrolling


### Calibre Connector

[App page](https://appshunter.io/ios/app/calibre-connector/id6477761553)

This application facilitates the transfer of book information from the Calibre software to your Apple device. It enables easy access to your digital library on the go.

**Highlights:** Download Calibre information, Sync to iDevice, Access digital library, Supports iPhone and iPad

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

**In-app purchases:** none


## Frequently asked questions

### Is PocketBook Reader free?

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

### Is Calibre Connector free?

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

### Which has better reviews, PocketBook Reader or Calibre Connector?

PocketBook Reader is rated higher. PocketBook Reader averages 4.5 out of 5 from 9.8K ratings, while Calibre Connector averages 2.4 from 13 ratings.

### Do PocketBook Reader or Calibre Connector have ads?

Neither PocketBook Reader nor Calibre Connector shows ads.

### Which is updated more often, PocketBook Reader or Calibre Connector?

PocketBook Reader ships an update every 2 months, and Calibre Connector every 4 days. Most recently, PocketBook Reader was updated on September 24, 2026 and Calibre Connector on September 7, 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.*