KyBook app not working? crashes or has problems?

KyBook Status

KyBook is a modern reader application for e-books. It has highly customizable
and friendly interface and also:    Key features:    - EPUB, FB2, RTF,
PDF, DJVU, CHM, CBR, CBZ, MP3, M4A, M4B formats - OPDS catalogs and network
folders   - Google Books, Google Drive, Dropbox, OneDrive, Yandex Disc -
Flexible reading mode settings Complete feature list: - Supports e-books in
EPUB, FictionBook (fb2, fbz, fb2.

I have a problem with KyBook

Are you having issues? Select the issue you are having below and provide feedback to KyBook.

User reports:
No current problems

User reports 0

problems reported in the last 24 hours

24 hour clock

Most reported problems

Reported Issues: 0 Comments

No reports yet! Be the first to report an issue.

Have a Problem with KyBook - EPub,FB2,PDF,DjVu Reader? Report Issue

Common KyBook Problems & Solutions. Troubleshooting Guide

Complete guide to troubleshoot KyBook app on iOS and Android devices. Solve all KyBook app problems, errors, connection issues, installation problems and crashes.

Table of Contents:

KyBook iPhone Issues and Solutions

KyBook iOS app crashes, not working, errors
KyBook iOS app network issues
KyBook on iOS has black/white screen

KyBook Android App Issues and Solutions

KyBook has errors/crashing/not working
KyBook server network connectivity issues
KyBook has black screen

KyBook iPhone Issues and Solutions

Here are some helpful workarounds that should work whenever KyBook app keeps crashing or doesn't work as expected on your iPhone 14, 13,12,10,8,7,6, SE,XS,XR.

How to fix KyBook app crashes or not working on Iphone (iOS):

Close and restart the KyBook app on iPhone
Update KyBook app to the Latest Version for iOS
Uninstall and reinstall KyBook iPhone app
Update your iPhone to the latest iOS version

Fix KyBook on iPhone unable to connect to server/internet connection issues::

To resolve KyBook network issues, Reset phone network settings:
1. On iphone, Goto "Settings" » "General" » "Reset" » "Reset Network Settings".
2. Enter your device passcode. Then confirm "Reset Network Settings".

Turn off your VPN:
1. Goto "Settings" » "General" » "VPN".

Fix KyBook black/white screen (blank screen) on iPhone:

Follow the KyBook iOS app troubleshooting guide Here →

KyBook Android App Issues and Solutions

Fix KyBook not working on Android, crashes, errors or is unresponsive:

Follow these steps to resolve intermittent KyBook app issues:

Force Stop the KyBook App
1. On android, goto "Settings" » click KyBook app. » click "Force Stop".

Update KyBook to the latest version on PlayStore

Clear KyBook App Cache and Data:
1. On your device, goto "Settings" » click "Apps" » select "KyBook app" » click "Storage" » click "Clear Data" option. This Clears both data and cache.
2. Relaunch KyBook.

Fix KyBook unable to contact server/ KyBook internet connection errors on Android:

This issue is usually caused by your network. Here is how to fix:

On android, goto "Settings" » "Apps" or "Manage Apps" tab.
Click KyBook » "Force Stop".
Next, goto "Storage" » "Clear Data".
Again, got KyBook » "Mobile Data" » "Allow Background Data Usage".
Go back to "Settings" » "Connections" » "Mobile Network" » "Network Mode".
Now, put your network on 4G e.g. LTE/3G/2G (auto connect)
Relaunch KyBook on android.

Solve KyBook black/white screens issue on Android:

Follow the KyBook android app crash troubleshooting guide Here →

Contact Support

Some issues cannot be easily resolved through online tutorials or self help. So we made it easy to get in contact with the support team at Konstantin Bukreev, developers of KyBook.

0% Contact Match

Developer: READERA LLC

E-Mail: [email protected]

Website: Visit KyBook Website

About this app

this app is a modern reader application for e-books. - Supports e-books in EPUB, FictionBook (fb2, fbz, fb2. zip), TXT, RTF, PDF, DJVU, CHM, Comic Book (cbr, cbz) and Audio Book (mp3, m4a, m4b) formats. - Has wide opportunities in searching and downloading e-books from different sources. - Provides access to enormous collection of free electronic books through OPDS-catalogs support. - Downloads e-books with the help of Web Browser (Mobile Safari), e-mail or iTunes. - Saves your books into cloud storages and network folders. - Integrated with Google Books, Google Drive, Dropbox, OneDrive and Yandex Disc. - Allows flexible setting of text displaying: font selection, colour theme, text size, text alignment mode, line height, margins, paragraph indention and hyphenations. - Allows choosing book covers from different sources, changing titles and subjects. - Provides easy navigation inside the book using table of content, bookmarks or notes. - Helps organizing your books on shelves, cataloging them under subjects and sorting in different modes. - Has full-screen reading mode in landscape and portrait orientation. - Allows turning and scrolling pages in vertical or horizontal mode. - Allows locking orientation and changing screen brightness. - Supports dictionaries, translation of selected text and text-to-speech. Dear users, DJVU, CHM, Tor Network and 'Speed Reading' requires in-app purchase "Upgrade to Pro Version". After the trial period You can unlock them via upgrading this app to Pro Version. You are free to use these features during the trial period.