# PocketBook Reader vs KyBook 3 Ebook Reader

The clearest difference is update cadence: KyBook 3 Ebook Reader at every 5 days against PocketBook Reader's every 2 months. KyBook 3 Ebook Reader also leads on iOS requirement (11.0 vs 13.0). PocketBook Reader's advantage is chart position (#180 vs unranked). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. PocketBook Reader sells 41 one-off in-app purchases and KyBook 3 Ebook Reader sells 4 in-app purchases, starting at $4.49 per 3 months. Whichever you choose, the download price is not the number that matters.

KyBook 3 Ebook Reader holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 10K and 4.7K respectively. Written reviews point the same way: 55% of PocketBook Reader's written reviews are positive against 61% of KyBook 3 Ebook Reader's.

PocketBook Reader ships an update every 2 months, KyBook 3 Ebook Reader every 5 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | PocketBook Reader | KyBook 3 Ebook Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (10K ratings)](https://appshunter.io/ios/app/pocketbook-reader/id805488884/reviews) | **[4.7 (4.7K ratings)](https://appshunter.io/ios/app/kybook-3-ebook-reader/id1348198785/reviews)** |
| Number of ratings | **10K** | 4.7K |
| Positive reviews | 54.5% of reviews | **60.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#180** | — |
| Size | 106 MB | 53 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 17+ |
| Developer | [Pocketbook International SA](https://appshunter.io/developer/1536135171) | [Konstantin Bukreev](https://appshunter.io/developer/547576207) |

## What reviewers say

### PocketBook Reader

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

**Currently charting:** #180 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


### KyBook 3 Ebook Reader

[App page](https://appshunter.io/ios/app/kybook-3-ebook-reader/id1348198785)

This app is a versatile e-book reader and cataloger supporting numerous formats like EPUB, MOBI, and PDF. It offers a comfortable reading experience with customizable options, powerful annotation tools, and seamless cloud storage integration. Organize your library with tags, collections, and a handy cataloguer.

**Highlights:** Supports all major e-book formats, OPDS catalog access, Comfortable reading mode with themes, Powerful annotations and summary editor, Handy cataloguer with tagging, Cloud storage integration

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 months subscription | $4.49 | per 3 months |
| Yearly subscription | $14.99 | per year |
| Upgrade to Pro (Discount) | $2.99 | one-time |
| Upgrade to Pro | $4.99 | one-time |

**What reviewers like**

- 🚀 Excellent design, close to no ads
- 🚀 Handles various file formats well
- 👍 Customizable, lots of features
- 👍 Stable and fast
- 👍 Good for reading comics/manga

**What reviewers complain about**

- 🐛 Sync and account issues
- 🐛 Crashes, bugs, and compatibility problems
- 🔍 Confusing interface, hard to use
- 💰 Paid features and subscription model
- 🔍 Missing key features like page turn animation

**Reported bugs**

- Inability to open/read certain file formats
- Sync and account creation issues
- Problems with PDF and image display
- Crashes and compatibility problems
- Duplication of books in library

**Requested features**

- Left alignment option
- Dark mode/OLED black theme
- Improved image handling
- Better support for Chinese language
- Vertical page flip


## Frequently asked questions

### Is PocketBook Reader free?

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

### Is KyBook 3 Ebook Reader free?

KyBook 3 Ebook Reader is free to download, with in-app purchases available.

### Which has better reviews, PocketBook Reader or KyBook 3 Ebook Reader?

KyBook 3 Ebook Reader is rated higher. PocketBook Reader averages 4.5 out of 5 from 10K ratings, while KyBook 3 Ebook Reader averages 4.7 from 4.7K ratings.

### Do PocketBook Reader or KyBook 3 Ebook Reader have ads?

Neither PocketBook Reader nor KyBook 3 Ebook Reader shows ads.

### Which is updated more often, PocketBook Reader or KyBook 3 Ebook Reader?

PocketBook Reader ships an update every 2 months, and KyBook 3 Ebook Reader every 5 days. Most recently, PocketBook Reader was updated on October 25, 2026 and KyBook 3 Ebook Reader on October 25, 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.*