KyBook 3 Ebook Reader app icon

KyBook 3 Ebook Reader

by Konstantin Bukreev

EN / ESTrending upSentimenttrend not available
Appeye score 79 out of 100, from 258 reviews (moderate confidence)

258 reviews analysed · 15 Sep 2018 – 31 Jul 2026 · scored 19 Aug 2026

Preview cardShare on Twitter
App Store

Based on 258 reviews from 15 Sept 2018 - 31 Jul 2026.

Overview

Appeye score
79/100moderate confidence
Category rank
#1255 of 1,745Books & Reference
Reviews analysed
258Scored reviews from the App Store.
Sentiment trend
Trending upIts trend signals are moving in a positive direction.
App Store
4.7

4.6K ratings

Review sentiment

64
App nameKyBook 3 Ebook Reader
SellerKonstantin Bukreev
GenreBook
Versionv0.7.8
Content rating17+
Requires iOS11.0
Size53 MB
Released15 Sept 2018
Current version23 Feb 2019
View on App Store
App 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) • DjVu • 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

Sentiment over time

Not enough monthly history yet to show a trend.

Version history sentiment

Per-release positive review share for each app version that has at least 3 analysed reviews, oldest first — so you can see whether the last real release helped or hurt separately from the calendar-month trend.

Sign in to see per-release review sentiment for this app.

Version history · App Store

No version snapshots recorded for this app on App Store yet.

Related apps

Other Books & Reference apps with the closest Appeye score.

See all Books & Reference apps →