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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

7 Ratings

Customer Reviews

Love this app

Version 1.2.4
A great reading app and great support

Almost perfect

Version 1.1.0
The reading app is a continuation of the lifecycle of the original KyBook. It’s reasonably fast and well rounded. Some nice touches like playing the sound of a turning page and being able to tag your books collection.
It’s good, for organising a large number of books without feeling overwhelmed, and good for providing you an immersive experience.
But it has its fair share of bugs. It doesn’t crash or segfault, but it does occasionally misrender pages. Some artefacts here and there, means that sometimes you feel brutally yanked out of the page. Which is a shame.

Ruined by aggressive ads

Version 1.1.0
This was a great app, but the latest update has ratcheted up the advertising and now it is almost useless, with distracting animations in the reading view and the bottom strip of the page completely obscured.


Version 1.1.0
I spent a lot of time looking for a reading app. This has all the functionality and flexibility I need. I can access all my books from the cloud (Dropbox and google drive ). I can copy books saved on my computer. Lots of customisation and the TTS is far superior to the option for iBooks, which I found very buggy. Plus it is small in size which is important when you don’t have a lot of storage space. No ads when reading and free.

No authenticated opds support

Version 1.1.0
The original KyBook has support of opds servers requiring user/pass authentication. The newer kybook2 doesn’t. Seems an odd omission, but very common for all ereader apps. For those of us without own library we don’t want to open it up to the world. Please add back in opds authentication, especially now the original kybook is no longer support or reliable under iOS 11!
Other than that it’s a great reader, the best, I just can’t access my library :(

No free DjVu support despite false advertising!

Version 1.1.0
Horrible to have an iPhone and deal with terrible selection of apps for viewing DjVu

Best around at the moment

Version 1.0.8
Quite good really, would prefer the time and battery display at the top but at least it is there. Prefer KyBook 1 if I have an ePub file though.