KyBook 3 Ebook Reader for iOS

Developer's Description

KyBook is the application for reading and cataloging e-books in a modern, user-friendly style.

KyBook supports all the major e-book formats, OPDS catalogs and Cloud Storage.

Key features

All the major e-book formats

OPDS catalogs

Comfortable reading mode

Powerful annotations

Handy cataloguer

Cloud Storage

Ebook Formats

EPub (DRM-free)

PDF (DRM-free)

MobiPocket and Kindle (mobi, azw3)


FictionBook (fb2, fb2.zip)

Comic Book (cbr, cbz, cbt)

Audio Book (mp3, m4a, m4b)

Plain and rich text (txt, rtf)

OPDS Catalogs

Provides access to enormous collection of free electronic books through OPDS-catalogs support.

Built-in list of well-known OPDS Catalogs

Allows add own catalog (e.g. Calibre content server)

Supports for .onion OPDS Catalogs reachable via Tor Network

Comfortable reading mode

Themes, color schemes for reading (day, night, sepia and more).

Page turn with scroll, curl and slide.

Designed to be fast, energy efficient, optimized for very large books (books in millions of words)

Auto scrolling mode

Text-to-speech technology to voice any e-book

EPUB/FB2/MOBI specific features

Customizable font, text size, page margins, paragraph indentation, background and more

Typography aware (hanging punctuation, hyphenations and more)

PDF/DJVU specific features

Crops a page margins in manual and automatic mode

Smart zooming by double-tap

PDF Reflow on iPhone

Page text recognition (OCR)

Powerful annotations

Marked text and bookmarks

Drawn annotations in any ebook (Apple Pencil support and just by touching).

Annotations exports in Markdown, HTML, PDF, RTF formats.

Built-in the summary editor

Markdown formatting.

Exports summaries in Markdown, HTML, PDF, RTF formats.

Working with fragments of text

Translation of separate words or complete sentences in different languages.

Search for a word definition in dictionaries.

Custom dictionaries in Dictd, StarDict and Lingvo DSL format

Full text searching in a book (textual, fuzzy and search using regular expressions).

Built-in search for a selected text on the Internet or Wikipedia.

Handy cataloguer

Grouping by categories: by authors, subjects, sequences, publishers, tags, popular, recent, new, unread, reading and finished.

Tags and collections to categorize ebooks.

Search for books in the library and anywhere in the Internet.

Own folders tree and flexible bookshelf settings for layout and sorting.

Arranging books on a bookshelf by dragging.

Working with a metadata and a table of contents

Automated extraction of a metadata from ebooks.

Convenient editing of a metadata.

Editing and creation (automatic or manual) of a table of contents.

File Storage

Locally on the device.

In the Cloud Storage (iCloud Drive, Google Drive, OneDrive, Dropbox, Yandex Disk).

In the Local network on Shared Folders (SMB/CIFS) or on WebDAV server

Transparent caching of books in the Internet or Local network.

Supports of streaming audio books in Cloud Storage.

Content Server for accessing files on the device via a WiFi.

Synchronization (requires subscription)

Syncs all ebooks metadata and files.

KyBook offers the following subscriptions options:

3 months: 4.49 USD

1 year: 14.99 USD

Prices may vary in other countries respecting your local currency exchange rate. Your subscription will be charged to your iTunes account. At the end of the term, unless auto-renewables subscriptions are disabled, your subscription will automatically renew in your iTunes account. You will be charged for the regular price of your subscription within 24 hours prior to the end of the current term. You can turn off automatic renewal in your iTunes account settings at any time, but you must do so at least 24 hours before the end of the current term. Refunds will not be provided for the unused portion of any term.

Terms & Privacy policy



Full Specifications

What's new in version v0.7.8


Release August 27, 2019
Date Added August 27, 2019
Version v0.7.8

Operating Systems

Operating Systems iOS
Additional Requirements Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


Total Downloads 16
Downloads Last Week 2
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