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Best Kybook Apps

41+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated August 2026

Out of 41+ kybook apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Kybook Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1KyBook 3 Ebook ReaderKyBook 3 Ebook ReaderFree4.7★ (4.6K)NoYesAug 2026
2KyBook - EPub,FB2,PDF,DjVu ReaderKyBook - EPub,FB2,PDF,DjVu ReaderFree4.4★ (464)NoYesAug 2026
3KyBook 2 Ebook ReaderKyBook 2 Ebook ReaderFree4.7★ (2.3K)NoYesAug 2026
4eBoox - fb2 ePub book readereBoox - fb2 ePub book readerFree4.8★ (3.5K)NoNoAug 2026
5PocketBook ReaderPocketBook ReaderFree4.5★ (9.7K)NoYesAug 2026
6PureLibro: eBook ReaderPureLibro: eBook ReaderFree4.6★ (361)NoYesAug 2026
7Apple BooksApple BooksFree4.4★ (86K)NoNoAug 2026
8Epub Reader with AI -Books ProEpub Reader with AI -Books Pro$4.994.8★ (8)NoYesJul 2026

Top Picks for Kybook

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 - EPub,FB2,PDF,DjVu Reader#2

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

Strong Contender
📚 Books
4.4😊(464 ratings)
FreeIn-App Purchases
KyBook - EPub,FB2,PDF,DjVu Reader screenshot 1
KyBook - EPub,FB2,PDF,DjVu Reader screenshot 2
KyBook - EPub,FB2,PDF,DjVu Reader screenshot 3
KyBook - EPub,FB2,PDF,DjVu Reader screenshot 4
KyBook - EPub,FB2,PDF,DjVu Reader screenshot 5

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.

What We Love

  • 👍 Easy to use
  • 🚀 Fast and smooth performance
  • 📚 Supports wide range of file formats
  • 🔖 Good organization and categorization features

Room to Improve

  • 🐛 Syncing issues, especially with Dropbox and Google Drive
  • 🔍 Navigation and file management could be improved
  • 💰 Paid version required for some key features
KyBook 2 Ebook Reader#3

KyBook 2 Ebook Reader by Konstantin Bukreev

EPub, MOBI, DjVu and More
Worth Considering
📚 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

More Kybook apps to explore

4
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
5
PocketBook Reader
PocketBook Reader
PocketBook Reader
PDF, EPUB, FB2, Audiobooks
Free

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.

Supports 26 book and audio formatsPDF Reflow functionText-to-speech engine
📚 Books
(9.7K)
free with in-app purchases
6
PureLibro: eBook Reader
PureLibro: eBook Reader
PureLibro: eBook Reader
Read EPUB, MOBI, PDF & comics
Free

This app offers a comprehensive reading experience for various digital book and comic formats. It features AI-powered image enhancement, cloud synchronization, extensive customization options, and robust privacy controls. Enjoy hands-free reading and track your progress with detailed statistics.

Supports TXT, EPUB, MOBI, PDF, CBZ, CBR and moreAI-powered image enhancement for comicsiCloud sync across devices
📚 Books
(361)
free with in-app purchases
7
Apple Books
Apple Books
Apple Books
Read, listen, discover.
Free

Discover, read, and listen to millions of books and audiobooks. Browse curated collections, personalized recommendations, and bestsellers. Customize your reading experience with various themes and settings, and set reading goals to build a habit. Share your library with family.

Discover millions of books and audiobooksPersonalized recommendations and curated collectionsCustomizable reading experience (fonts, themes, spacing)
📚 Books
(86K)
free with in-app purchases
8
Epub Reader with AI -Books Pro
Epub Reader with AI -Books Pro
Epub Reader with AI -Books Pro
AI Helper, Epub, PDF, Textbook
$4.99

This app is a versatile eBook reader supporting numerous file formats including EPUB, PDF, and documents. It offers editing capabilities, cloud integration, customizable reading options, and an AI assistant for summaries and translations. Organize your library with ease and enjoy a personalized reading experience.

Supports EPUB, PDF, TXT, DOCX, and moreEdit documents directly within the appImport/export from cloud services
📚 Books
(8)
subscription
9
BookFusion
BookFusion
BookFusion
eBook Reader, Manager & Cloud
Free

Manage, read, and organize your entire eBook collection across all devices with cloud synchronization. Customize your reading experience with extensive settings, highlights, and annotations. Supports various formats and offers text-to-speech functionality.

Cross-platform eBook readerCloud synchronizationOrganize with virtual bookshelves
📚 Books
(486)
free with in-app purchases
10
LAB - Book Store
LAB - Book Store
LAB - Book Store
Myanmar novels
Free

Access a wide collection of Myanmar novels and online books. Enjoy offline reading, customizable display options like dark mode and font selection, and receive notifications for new content.

Myanmar online novelsOffline readingDark mode / Light mode
📚 Books
(1)
free
11
Cloudpub Owner Connect
Cloudpub Owner Connect
Cloudpub Owner Connect
Spring Time Software Solutions
Free
💼 Business
(0)
12
Kytabook
Kytabook
Kytabook
by Mitech
Free
📚 Education
(0)
13
Henderson Co. Public Library
Henderson Co. Public Library
Henderson Co. Public Library
by Henderson County Public Library (Kentucky)
Free
🌟 Lifestyle
(0)
14
Kbook - Korean book
Kbook - Korean book
Kbook - Korean book
Korean stories
Free

Learn Korean through engaging comic stories and webtoons. Discover Korean culture and language with over 1000 short comic content pieces. Amateur authors can also gain experience by creating their own webtoons.

Learn Korean with story comicsRead webtoons for language practiceDiscover Korean culture
📚 Education
(14)
free with in-app purchases
15
DjVu to PDF
DjVu to PDF
DjVu to PDF
Convert, View & Share
Free

Easily convert DjVu files to PDF format with this user-friendly application. It offers fast, high-quality conversions, ensuring your documents remain intact and universally compatible. Ideal for students and professionals needing to simplify document management.

Fast DjVu to PDF conversionHigh-quality output preservationIntuitive user interface
📚 Education
(3)
subscription
16
1st Kentucky Bank Mobile
1st Kentucky Bank Mobile
1st Kentucky Bank Mobile
by First Kentucky Bank, Inc.
Free

Manage your finances on the go with this mobile banking app. Check balances, transfer funds between accounts, and locate nearby branches and ATMs. It's designed for existing online banking customers.

Check account balancesSearch recent transactionsTransfer funds between accounts
💰 Finance
(17)
free
17
Bookster
Bookster
Bookster
by Nikolay Denislamov
$4.99

Easily convert FB2 and TXT e-books into the ePub format, compatible with the native iOS Books app. This tool bridges the gap, allowing you to read your favorite books on any iOS device.

Convert FB2 to ePubConvert TXT to ePubImport books via Files app
📚 Books
(0)
paid
18
Hitbook.io
Hitbook.io
Hitbook.io
All in one System for Creative
Free
💼 Business
(0)
19
Quote Notebook
Quote Notebook
Quote Notebook
Digital notes for real books
Free
📚 Books
(0)
20
Gearheart Communications
Gearheart Communications
Gearheart Communications
by Dirxion LLC
Free
🌟 Lifestyle
(0)

FAQ about Kybook

What are the best kybook apps for iPhone?
KyBook 3 Ebook Reader tops our kybook 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 apps we rank are free to download, including KyBook 3 Ebook Reader and KyBook - EPub,FB2,PDF,DjVu 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 41+ kybook 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.

Related searches

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