iPhone Screenshots

iPad Screenshots


Attention, since October 1, 2019, the third edition of the application is available on the App Store - KyBook 3 Reader.
The best way to read your books ever!
KyBook supports all the major e-book formats, OPDS catalogs and Cloud Storage.
Continuously developing and improving in close contact with thousands of KyBook users.
Key features:

- EPUB, FB2, RTF, PDF, DJVU, MOBI, AZW3, CBR, CBZ, CBT, MP3, M4A, M4B formats
- OPDS catalogs

- Cloud Storage
- Flexible reading mode settings
- Handy cataloguer
- Text-to-speech technology
- Supports e-books in EPUB (DRM-free), FictionBook (fb2, fbz, fb2.zip), TXT, RTF, PDF, DJVU, Comic Book (cbr, cbz, cbt), MobiPocket (mobi), Kindle (azw3), and Audio Book (mp3, m4a, m4b) formats.
- Provides access to enormous collection of free electronic books through OPDS-catalogs support.
- Finds books in your Cloud Storage or anywhere in Internet.
- Saves your books into iCloud, Dropbox, Yandex Disk, Google Drive, OneDrive, Cloud Mail.ru, ownCloud (WebDAV) and Shared folders (SMB/CIFS).
- Allows customize: font, colour theme, text size, text alignment mode, margins, paragraph indention, hyphenations and more.
- Provides easy navigation inside the book using table of content, bookmarks or notes.
- Helps organizing your books, cataloging them, grouping and sorting in different modes.
- Provides detailed information about each of your book.
- Allows choosing book covers from different sources, changing titles and subjects and even more.
- Uses text-to-speech technology to voice any e-book.
- Supports translation of text and the vocabularies in StarDict and Lingvo DSL format.
- Integrates with social networking services.
- Supports of archives in ZIP, RAR and TAR format.
- Provides Speed Reading.
- Allows to stream audio for audio books in Cloud Storage.
- Supports fuzzy search and search using regular expressions in a text book.
- Supports automatic text summarization and precis-writing.
- Supports preview of iWork, Microsoft Office, CSV, HTML files.

What's New in Version 1.2.8

- Fixed crash when using the translation service in iOS 9.
- Few minor improvements.



Konstantin Bukreev






53.2 MB

Game Center


VPP Device Licensing



Rated 17+ for the following:
Unrestricted Web Access


iOS 8.1 or later


iPhone 4S, iPhone 5, iPhone 5c, iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPad 2 (Wi-Fi), iPad 2 (3G), iPad (3rd Generation) (Wi-Fi), iPad (3rd Generation) (4G), iPad (4th Generation) (Wi-Fi), iPad (4th Generation) (4G), iPad (5th Generation) Wi-Fi, iPad (5th Generation) Wi-Fi + Cellular, iPad (6th generation) Wi-Fi, iPad (6th generation) Wi-Fi + Cellular, iPad Pro, iPad Pro (Cellular), iPad Pro (9.7-inch), iPad Pro (9.7-inch) (Cellular), iPad Pro 12.9-inch (2nd generation), iPad Pro 12.9-inch (2nd generation) Wi-Fi + Cellular, iPad Pro (10.5-inch), iPad Pro (10.5-inch) Wi-Fi + Cellular, iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro 12.9-inch (3rd generation), iPad Pro 12.9-inch (3rd generation) Wi-Fi + Cellular, iPad Air, iPad Air (Cellular), iPad Air 2, iPad Air 2 (Cellular), iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, iPad mini (Wi-Fi), iPad mini (4G), iPad mini Retina, iPad mini Retina (Cellular), iPad mini 3, iPad mini 3 (Cellular), iPad mini 4, iPad mini 4 (Cellular), iPad mini (5th Generation), iPad mini (5th Generation) Wi-Fi + Cellular, iPad (7th generation) Wi-Fi + Cellular, iPod touch (5th generation), iPod touch (6th Generation), iPod touch (7th generation)


English, German, Greek, Russian

Customer Ratings

All Versions

97 Ratings

Customer Reviews

Is a good app, if only the text to speech function worked better

Version 1.2.8
It’s a pretty good app. I’ve been using it for some time and have encountered almost zero crashes. The only thing is that the speak function seems broken.
Every time I try to use it, the speech is in German and I can’t seem to change it. Please help me fix this. Otherwise it would have been a great app.

How to locate books in KyBook in iPad

jatinder gupta
Version 1.2.8
Hello, I have downloaded KyBook app from App Store in my iPad, but I am not able to locate/ find my books on KyBook app, however all my books are findable in default iBook app of app . Please help me, I am using iPad 11.

Great app

Version 1.2.8
None of the app in store is better than this 👍 keep it up


Version 1.2.8
My first review on app Store and all I want to say is thanks to the developers. I use this app daily for all my reading and think this is the best one out there for iOS.

Great app!

Version 1.2.4
Great app! Would love it even more if the thumbnail view of pages can be viewed quickly with less taps.

Not as efficient

Version 1.2.4
As expected not fast and efficient

No multi window support

Version 1.1.0
Doesn’t support multiwindow on iOS 11. really disappointing.

A bug

Version 1.1.0
I can no longer clear the words searched in books by swiping them to the left. That space is getting cluttered. Apart from this, the app works wonderfully. Please remove this bug too. I left a comment on the website page for the app, but I got no reply.

All in one reader

Version 1.1.0
This app is great and is a one stop solution to read different ebook formats.It even reads audiobooks which are in m4b format.


Rajeshkumar Lingavel
Version 1.0.8
It save my time on exam time. Thank you developers.

Good a step to become great

V Narayanan
Version 1.0.8
I accidentally found this app to read my PDF Books.
Fit to text, width & page option & read the entire book attracted me
The ability to create folders, organise my books made me further attached
More than this, I am able to edit Meta Data of the book when it's not correct or missing. This made me to use KyBook instead of iBooks
Finally I can read AZW, Mobi & such other formats too. Making me to ditch Kindle Paper White too.
I need just 2 more features
1) The resolution is yet to match iBooks - I get tired after 2 hrs of reading- in iBooks I can read 4 hrs.
2) Text Overflow like Documents 5 by Readdle or Foxit Reader is needed for PDF Books. I like the Foxit Reader ability to even give bullet points properly in Text Overflow mode for free.
Foxit Reader also performs similar to KyBooks except the ability to read ePub, Mobi & other formats. I had two options
A. Use iBooks for ePub, Kindle App for Amazon Books & Foxit Reader for PDF Books
B. Use just KyBooks with compromise on PDF Books
I chose second option & I am happy
Hope in due course these two improvements are also made

Very good app.......!

Version 1.0.7
This app is complete for my bible study.
Customization is very good.
Themes few. More could be added.
Fonts - more could be added.
Need in store notes to if possible.
Rest excellent app once again.
Good Job.....
Wish I could add more than 5 stars.....
God bless....