1. Home
  2. Topics
  3. Kybook 3 Ebook Reader

Best Kybook 3 Ebook Reader Apps

250+ iOS apps curated and reviewed

3.8 avg rating
18 free apps
Updated August 2026

With an average user rating of 3.8★, the kybook 3 ebook reader category is one of the App Store's strongest. Browse all 250+ apps we track, sorted so the most loved ones surface first.

Compare top Kybook 3 Ebook Reader Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1KyBook 3 Ebook ReaderKyBook 3 Ebook ReaderFree4.7★ (4.6K)NoYesAug 2026
2KyBook 2 Ebook ReaderKyBook 2 Ebook ReaderFree4.7★ (2.3K)NoYesAug 2026
3PocketBook ReaderPocketBook ReaderFree4.5★ (9.7K)NoYesAug 2026
4KyBook - EPub,FB2,PDF,DjVu ReaderKyBook - EPub,FB2,PDF,DjVu ReaderFree4.4★ (464)NoYesAug 2026
5Libby, the library appLibby, the library appFree4.9★ (4.4M)NoNoAug 2026
6eBoox - fb2 ePub book readereBoox - fb2 ePub book readerFree4.8★ (3.5K)NoNoAug 2026
7Ebook ReaderEbook ReaderFree3.4★ (583)NoNoAug 2026
8OnSecure eBook ReaderOnSecure eBook ReaderFree1.0★ (1)NoNoMay 2026

Top Picks for Kybook 3 Ebook Reader

KyBook 3 Ebook Reader#1

KyBook 3 Ebook Reader by Konstantin Bukreev

Epub, Mobi, Djvu and More
Editor's Choice
📚 Books
4.7😐(4.6K ratings)
FreeIn-App Purchases
KyBook 3 Ebook Reader screenshot 1
KyBook 3 Ebook Reader screenshot 2
KyBook 3 Ebook Reader screenshot 3
KyBook 3 Ebook Reader screenshot 4
KyBook 3 Ebook Reader screenshot 5
KyBook 3 Ebook Reader screenshot 6

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.

What We Love

  • 🚀 Excellent design, close to no ads
  • 🚀 Handles various file formats well
  • 👍 Customizable, lots of features
  • 👍 Stable and fast

Room to Improve

  • 🐛 Sync and account issues
  • 🐛 Crashes, bugs, and compatibility problems
  • 🔍 Confusing interface, hard to use
KyBook 2 Ebook Reader#2

KyBook 2 Ebook Reader by Konstantin Bukreev

EPub, MOBI, DjVu and More
Strong Contender
📚 Books
4.7😐(2.3K ratings)
FreeIn-App Purchases
KyBook 2 Ebook Reader screenshot 1
KyBook 2 Ebook Reader screenshot 2
KyBook 2 Ebook Reader screenshot 3
KyBook 2 Ebook Reader screenshot 4
KyBook 2 Ebook Reader screenshot 5
KyBook 2 Ebook Reader screenshot 6

This app is a versatile e-book reader that supports a wide range of formats including EPUB, MOBI, and PDF. It offers extensive customization for reading modes, cloud storage integration, and text-to-speech capabilities for audiobooks.

What We Love

  • 👍 Stable and solid
  • 👍 Customizable reading experience
  • 👍 Excellent reading app
  • 👍 Great for reading PDFs and ebooks

Room to Improve

  • 🐛 Bugs and crashes
  • 💰 Aggressive push for paid upgrades
  • 🔍 Confusing navigation and UI
PocketBook Reader#3

PocketBook Reader by Pocketbook International SA

PDF, EPUB, FB2, Audiobooks
Worth Considering
📚 Books
4.5😐(9.7K ratings)
FreeIn-App Purchases
PocketBook Reader screenshot 1
PocketBook Reader screenshot 2
PocketBook Reader screenshot 3
PocketBook Reader screenshot 4
PocketBook Reader screenshot 5
PocketBook Reader screenshot 6

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.

What We Love

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

Room to Improve

  • 🐛 Crashes and freezes
  • 🐛 Unreliable cloud sync
  • 🐛 Inconsistent page rendering

More Kybook 3 Ebook Reader apps to explore

4
KyBook - EPub,FB2,PDF,DjVu Reader
KyBook - EPub,FB2,PDF,DjVu Reader
KyBook - EPub,FB2,PDF,DjVu Reader
by Konstantin Bukreev
Free

This app is a versatile e-book reader supporting a wide range of formats including EPUB, PDF, and audiobooks. It offers extensive customization for reading modes, cloud storage integration, and easy book organization. Advanced features like DJVU support and speed reading are available via in-app purchase.

Supports EPUB, FB2, PDF, DJVU, CBR, CBZ, MP3, M4A, M4B formatsOPDS catalogs and cloud storage integrationCustomizable reading mode settings
📚 Books
(464)
free with in-app purchases
5
Libby, the library app
Libby, the library app
Libby, the library app
Library audiobooks and ebooks
Free

Access millions of free ebooks and audiobooks from your local library. Borrow titles instantly with your library card, download for offline enjoyment, and enjoy a customizable reading and listening experience.

Borrow ebooks and audiobooksDownload for offline accessSend ebooks to Kindle
📚 Books
(4.4M)
free
6
eBoox - fb2 ePub book reader
eBoox - fb2 ePub book reader
eBoox - fb2 ePub book reader
Read books comfortably
Free

This application provides a comfortable and customizable reading experience for a wide variety of e-book formats. It offers features like bookmarks, highlights, dark mode, and offline reading, with seamless online synchronization. Books can be easily uploaded from various sources, including cloud storage and email.

Supports EPUB, MOBI, FB2, DOC, TXT, and moreCustomizable fonts, text size, and brightnessDark mode and offline reading
📚 Books
(3.5K)
free
7
Ebook Reader
Ebook Reader
Ebook Reader
by EBOOKS.COM PTY LIMITED
Free

Access and read your favorite books on the go with this free application. Enjoy a vast collection of popular titles, read online, or download them for offline access. Features include intuitive page turning, adjustable fonts, and synchronized reading progress across devices.

Read books online or offlineSync reading progress across devicesAdjustable font size and night mode
📚 Books
(583)
free
8
OnSecure eBook Reader
OnSecure eBook Reader
OnSecure eBook Reader
by OnFulfillment Inc.
Free

This application offers an interactive eBook reading experience with a fresh design. It integrates books with videos, audio, images, and interactive elements to enhance learning and engagement.

Interactive eBook readerIntegrated videos and audioImage banks
📚 Education
(1)
free
9
ReadEra – book reader pdf epub
ReadEra – book reader pdf epub
ReadEra – book reader pdf epub
Read books & PDF files easily!
Free

This app allows you to read and listen to books and documents in various formats, including PDF and EPUB. It offers text-to-speech functionality, customizable reading settings, and a built-in book manager for your library. Enjoy an ad-free and registration-free reading experience.

Multi-format ebook support (EPUB, PDF, MOBI, DOCX, etc.)Text-to-Speech (TTS) for listening to booksAd-free and registration-free experience
📚 Books
(231)
free
10
Namo eBook Reader
Namo eBook Reader
Namo eBook Reader
Accurate EPUB3 Viewer!
Free

This application offers a robust and accurate way to view EPUB2 and EPUB3 ebooks. It supports various layout types, advanced styling, and provides a suite of user-friendly reading tools for a customizable experience.

EPUB2 and EPUB3 supportReflowable and fixed-layout ebooksHTML5, Javascript, CSS3 rendering
📚 Books
(2)
free
11
Koodo Reader
Koodo Reader
Koodo Reader
Ebook Reading Made Easy
Free

Manage and read your local e-books with a powerful reader supporting numerous formats. Seamlessly integrate with cloud storage and NAS for cross-platform access. Customize your reading experience with adjustable fonts, themes, and optimized layouts.

Broad e-book format supportCloud and NAS integrationCross-device library sync
📚 Books
(0)
free
12
Rah Book Reader
Rah Book Reader
Rah Book Reader
by Majid Sharifi
Free

This application allows users to download and read PDF documents and audiobooks. It offers a simple and free experience for accessing digital content on mobile devices.

Download PDF documentsRead audiobooksSimple interface
📚 Books
(9K)
free
13
iPublishCentral Reader
iPublishCentral Reader
iPublishCentral Reader
by iPublishCentral
Free

Read and manage your digital library with this app. It supports PDF and EPUB formats, allowing you to organize books, customize your reading experience with notes and highlights, and sync progress across devices. Download content from various sources, including cloud storage and email.

Read PDF and EPUB ebooksOrganize books into shelvesAdd notes and highlights
📚 Books
(156)
free
14
Kinder - Ebook Reader
Kinder - Ebook Reader
Kinder - Ebook Reader
EPUB PDF MOBI AZW3 Library
Free
🔧 Utilities
(0)
15
Ebook Reader Pro
Ebook Reader Pro
Ebook Reader Pro
by 群群 刘
$5.99

This application provides a fast and reliable way to read various document formats on iOS and Mac. It offers features like zoom, bookmarking, text selection, and search capabilities for an enhanced reading experience.

Supports PDF, ePub, FB2, XPS, DjVu, CBZ, CBRPinch to zoom and smart zoomBookmark management
📊 Productivity
(1)
paid
16
ReadEW - Book Reader
ReadEW - Book Reader
ReadEW - Book Reader
Read books and documents
Free
🔧 Utilities
(0)
17
2ebook Store Reader
2ebook Store Reader
2ebook Store Reader
by STAQ Technologies Co., Ltd.
Free
📚 Books
(0)
18
eBookReader: FB2 & EPUB Reader
eBookReader: FB2 & EPUB Reader
eBookReader: FB2 & EPUB Reader
FB2 Reader, eBook Reader
$49.99

This app allows you to read eBooks in FB2 and EPUB formats, organize your digital library, and convert books into audio for listening. It's designed for book lovers who also enjoy audiobooks.

Read FB2 and EPUB eBooksBuild and manage your libraryConvert books to audio format
📚 Books
(0)
paid
19
Ebook Reader: Books & Library
Ebook Reader: Books & Library
Ebook Reader: Books & Library
Read, Highlight & Track Goals
Free
📚 Books
(0)
20
VoiceLogue
VoiceLogue
VoiceLogue
AI read your books, no subscri
Free
📚 Books
(0)

FAQ about Kybook 3 Ebook Reader

What are the best kybook 3 ebook reader apps for iPhone?
KyBook 3 Ebook Reader tops our kybook 3 ebook reader apps ranking as of August 2026, with a 4.7-star average from 4.6K App Store ratings, and it's free to download.
Yes — 18 of the top kybook 3 ebook reader apps we rank are free to download, including KyBook 3 Ebook Reader and KyBook 2 Ebook Reader.
KyBook 3 Ebook Reader has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 250+ kybook 3 ebook reader apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
KyBook 3 supports a wide array of e-book formats including EPUB (DRM-free), PDF (DRM-free), MobiPocket and Kindle (mobi, azw3), DjVu, FictionBook (fb2, fb2.zip), Comic Book (cbr, cbz, cbt), Audio Book (mp3, m4a, m4b), and plain/rich text (txt, rtf).
The app features a handy cataloguer that allows you to group books by authors, subjects, sequences, publishers, tags, and more. You can also use tags and collections to categorize your ebooks, and arrange them on a bookshelf with flexible layout and sorting options.