Best Kybook Apps

35+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated November 2026

Out of 35+ kybook apps on iOS, 19 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 (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1KyBook 3 Ebook ReaderKyBook 3 Ebook ReaderFree4.7β˜… (4.8K)NoYesNov 2026
2KyBook - EPub,FB2,PDF,DjVu ReaderKyBook - EPub,FB2,PDF,DjVu ReaderFree4.4β˜… (466)NoYesNov 2026
3KyBook 2 Ebook ReaderKyBook 2 Ebook ReaderFree4.7β˜… (2.4K)NoYesNov 2026
4eBoox - fb2 ePub book readereBoox - fb2 ePub book readerFree4.8β˜… (3.8K)NoNoNov 2026
5Apple BooksApple BooksFree4.6β˜… (141K)NoNoNov 2026
6PureLibro: eBook ReaderPureLibro: eBook ReaderFree4.6β˜… (365)NoYesNov 2026
7PocketBook ReaderPocketBook ReaderFree4.5β˜… (10K)NoYesNov 2026
8KYDOKYDOFreeβ€”NoNoMay 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
πŸ“š Books
4.7😐(4.8K 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

  • πŸš€ Excellent design, close to no ads
  • πŸš€ Handles various file formats well
  • πŸ‘ Customizable, lots of features
  • πŸ‘ Stable and fast
  • πŸ‘ Good for reading comics/manga
  • πŸ‘ Versatile, supports many features

Room to Improve

  • πŸ› Sync and account issues
  • πŸ› Crashes, bugs, and compatibility problems
  • πŸ” Confusing interface, hard to use
  • πŸ’° Paid features and subscription model
  • πŸ” Missing key features like page turn animation
  • πŸ” Ads and monetization issues
KyBook - EPub,FB2,PDF,DjVu Reader#2

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

Strong Contender
πŸ“š Books
4.4😊(466 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

  • πŸ‘ Easy to use
  • πŸš€ Fast and smooth performance
  • πŸ“š Supports wide range of file formats
  • πŸ”– Good organization and categorization features
  • πŸ”Š Excellent text-to-speech functionality
  • πŸ’» Works well on iPad

Room to Improve

  • πŸ› Syncing issues, especially with Dropbox and Google Drive
  • πŸ” Navigation and file management could be improved
  • πŸ’° Paid version required for some key features
  • πŸ“’ Intrusive ads in free version
  • πŸ”§ Lack of updates and support from developers
KyBook 2 Ebook Reader#3

KyBook 2 Ebook Reader by Konstantin Bukreev

EPub, MOBI, DjVu and More
Worth Considering
πŸ“š Books
4.7😐(2.4K 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

  • πŸ‘ Stable and solid
  • πŸ‘ Customizable reading experience
  • πŸ‘ Excellent reading app
  • πŸ‘ Great for reading PDFs and ebooks
  • πŸ‘ Syncs across devices
  • πŸ‘ Robust functionality

Room to Improve

  • πŸ› Bugs and crashes
  • πŸ’° Aggressive push for paid upgrades
  • πŸ” Confusing navigation and UI
  • πŸ“’ Intrusive ads
  • πŸ”’ Clipboard access concerns
  • πŸ—‘οΈ Unable to delete books

More Kybook apps to explore

FAQ about Kybook

What are the best kybook apps for iPhone?
KyBook 3 Ebook Reader tops our kybook apps ranking as of November 2026, with a 4.7-star average from 4.8K App Store ratings, and it's free to download.
Yes β€” 19 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 November 2026.
We track 35+ kybook apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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