KyBook 3 Ebook Reader Cheats

KyBook 3 Ebook Reader Hack v0.7.8 + Redeem Codes

Epub, Mobi, Djvu and More

Developer: Konstantin Bukreev
Category: Books
Price: Free
Version: v0.7.8
ID: com.kolyvan.yar

Screenshots

Game screenshot KyBook 3 Ebook Reader mod apkGame screenshot KyBook 3 Ebook Reader apkGame screenshot KyBook 3 Ebook Reader hack

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 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
http://kybook-reader.com/terms
http://kybook-reader.com/privacy-policy

Version history

v0.7.8
2019-02-23
- Fixed the issue with clipped text in PDF Reflow.
- Added the ability to change text size in PDF Reflow mode.
- PDF page is rendered in the current theme when the PDF Reflow mode is on.
- The application now remembers the Reflow mode for the recent open PDF book.
- Various minor improvements and bugfixes.
v0.7.6
2019-02-15
- Updated the Spanish localization.
- Added the support of migration from KyBook 1 (requires KyBook 1 v2.1.8 and above).
- Various minor improvements and bugfixes.
v0.7.5
2019-02-04
- Fixed the issue with downloading language pack for recognition (OCR) books in Chinese.
- Fixed the bug with incorrect calculation of the reading time when the book is not active.
- Various minor improvements and bugfixes.
v0.7.4
2019-01-30
- Added the Fast selection feature in the Reader.
- Removed support of 3D Touch in the Reader.
- Added OCR function for DjVu and PDF pages without text layer.
- When adding a bookmark, the title of the chapter is added to the text.
- Removed default paragraph indent from EPub, Mobi, FB2 display styles.
v0.7.3
2019-01-22
- Fixed the issue with resetting playback speed in audiobooks after paused.
- Fixed the issue with turning pages in landscape orientation using a hardware keyboard.
- Few small improvements.
v0.7.2
2019-01-18
- Various minor improvements.
v0.7.1
2019-01-14
- Czech localization.
- Added Dashboard/Notes screen for viewing user-made marks in all books.
- The Home button indicator on the iPhone (iPad 11) is always hidden while reading a book in full screen.
- Fixed an issue with images in EPub,Mobi,Fb2 books, when the light theme is applied.
- Few minor fixes and improvements.
- Reduced the application size.
v0.7.0
2019-01-06
- Improved Tor Network support (tor 0.3.5.6-rc).
- Fixed Tor Network reconnection issue.
- Few small improvements.
v0.6.9
2018-12-29
- Added adaptation of book images in the palette of the current theme (applicable only for light themes).
- Added hiding the Home button indicator on iPhoneX (iPad 11) when reading book in pagination mode.
- Fixed the application crash due to insufficient memory when processing many very large ebooks.
- Fixed back navigation in System Dictionaries dialog.
- Fixed an issue where unable to share a MOBI book from another application to KyBook if the Kindle App is installed on the device.
- Fixed some background crashes.
v0.6.8
2018-12-23
- On the book card in the bookshelf, the same series is now always displayed as in the parent section or the bookshelf.
- Fixed issues with rendering margins of the wrong size in the EPub.
- Fixed some issues with audio streaming.
- Supports of streaming from One Drive storage.
- Support of streaming PDF metadata from the Cloud Storage.
- Added the ability to limit the maximum size of the cloud storage files cached on the device.
- Few internal improvements and optimizations.
v0.6.7
2018-12-18
- Added an option to automatically playback the speech synthesis when open EPub,MOBI,FB2 book (disabled by default, enabled via the TTS settings).
- Changed default behavior to "Copying" instead of "Moving" when transfering files between/to/from Cloud Storage.
- Optimized extraction of cover images from FB2 books.
- Added support of the "Share" function for several books at once from a bookshelf (located on a device) as a zip-archive.
- Added the File Manager widget in the advanced interface mode.
- A few minor improvements and bug fixes.
v0.6.6
2018-12-14
- Optimized the page spread for PDF/DjVu/Comics in page curl mode.
- Added an animation of adding/deleting note markers.
- PDF Reflow mode now is aware of a page's links.
- Fixed wrong layout of a search bar in a bookshelf and a catalog's page on iPhone X.
- Improved a text selection in the Reader for EPub/Mobi/Fb2 books.
- Added an ability to fold/unfold the table of contents in the book.
- Improved fast forward/rewind for the speech synthesis. In the EPub/Mobi/Fb2 books, forward/rewind now takes into account the paragraph or sentence boundary. In PDF/DjVu books, forward/rewind starts playback from the next/previous page, accordingly.
- A few minor improvements and bug fixes.
v0.6.5
2018-12-08
- Fixed an issue with selection markers which may leave off after page changes.
- Fixed an issue with opening a book through the iOS Files App from the KyBook's folders in the iCloud or on the device.
- Fixed a rare error when it is impossible to download a book, a dictionary or something else.
- Rendering of PDF now takes into account the preset CropBox of page.
- Supports of the page spread mode in the landscape orientation on iPad for PDF/DjVu/Comics.
- Added an option 'No animation' for page changes.
- Optimized the full screen toggling for PDF/DjVu/Comics.
- Updated the Chinese localization.
- Updated the Spanish localization.
- A few minor improvements and bug fixes.
v0.6.4
2018-12-03
- Fixed an issue with Pencil interaction on new iPads.
- Fixed an issue with the text selection in some PDFs.
- Fixed a crash may occurs during very fast change pages in PDF document
- Few minor improvements.
v0.6.3
2018-11-29
v0.6.3
- Added the "Exclude" context menu item to "Recent" and "Reading" bookshelves.
- Added the new sorting mode "by Format" in the bookshelf.
- Added the Chinese localisation. Many thanks to 陈寿山 (ShaneChen) for the translation.
- Few bug fixes and minor improvements.

v0.6.2
- Faster loading of large plain text books.
- Added the setting `Background image is a pattern` for ebooks in the EPUB, MOBI, FB2 formats. This setting allows to use a background image as a background for the header and footer in the base interface mode. Disabled by default, may be enabled through an ebook settings.
- New experimental scrolling mode for ebooks in the EPUB, MOBI, FB2 formats. Prevents flickering and reduces CPU usage and an energy consumption. Especially good when the text reader has a background image. Disabled by default, may be enabled through the reader settings.
- Fixed an issue with occasionally hidden navigation bar on `Library` and `Catalogs` screen in the base interface mode.
- Added the preferences profile feature. Now an user can separately set preferences for any ebook in the EPUB, MOBI, FB2 formats.
- Added a message and alert to a bookshelf about "a book is still processing" when an user tries to interact with not yet loaded book.
- Fixed an issue when the userstyle in an ebook preferences was ignored.
- Various improvements and fixes.
v0.6.2
2018-11-27
v0.6.2
- Faster loading of large plain text books.
- Added the setting `Background image is a pattern` for ebooks in the EPUB, MOBI, FB2 formats. This setting allows to use a background image as a background for the header and footer in the base interface mode. Disabled by default, may be enabled through an ebook settings.
- New experimental scrolling mode for ebooks in the EPUB, MOBI, FB2 formats. Prevents flickering and reduces CPU usage and an energy consumption. Especially good when the text reader has a background image. Disabled by default, may be enabled through the reader settings.
- Fixed an issue with occasionally hidden navigation bar on `Library` and `Catalogs` screen in the base interface mode.
- Added the preferences profile feature. Now an user can separately set preferences for any ebook in the EPUB, MOBI, FB2 formats.
- Added a message and alert to a bookshelf about "a book is still processing" when an user tries to interact with not yet loaded book.
- Fixed an issue when the userstyle in an ebook preferences was ignored.
- Various improvements and fixes.

v0.6.1
- Improved stability and performance of audio book streaming from the cloud storage.
- Improved stability and performance during obtaining metadata of audio book from the cloud storage.
- Fixed the crash during opening some EPUBs.
- Fixed the base stylesheet used for EPUB and MOBI ebooks.
- Fixed an issue when unable delete a non-existent ebook file through the Bookcard screen.
- Added the ability to automatically create a playlist of mp3 files in the folder.
- Added the Spanish localization. Many thanks to José Labán for the translation.
- Added the Google Translator service.
- Added the ability to delete a book record from the database without deleting the book files through the Bookcard / Misc screen.
- Various minor improvements and bug fixes.
v0.6.1
2018-11-19
v0.6.1
- Improved stability and performance of audio book streaming from the cloud storage.
- Improved stability and performance during obtaining metadata of audio book from the cloud storage.
- Fixed the crash during opening some EPUBs.
- Fixed the base stylesheet used for EPUB and MOBI ebooks.
- Fixed an issue when unable delete a non-existent ebook file through the Bookcard screen.
- Added the ability to automatically create a playlist of mp3 files in the folder.
- Added the Spanish localization. Many thanks to José Labán for the translation.
- Added the Google Translator service.
- Added the ability to delete a book record from the database without deleting the book files through the Bookcard / Misc screen.
- Various minor improvements and bug fixes.

v0.6.0
- Fixed a black background of images in some pdf.
- Fixed a wrong layout in Reader after a device unlock if device orientation was changed.
- Fixed some issues of the files synchronisation.
v0.6.0
2018-11-02
v0.6.0
- Fixed a black background of images in some pdf.
- Fixed a wrong layout in Reader after a device unlock if device orientation was changed.
- Fixed some issues of the files synchronisation.

v0.5.9
- Fixed an issue with the layout when toggling fullscreen mode in Reader with pagination.
v0.5.9
2018-10-31
v0.5.9
- Fixed an issue with the layout when toggling fullscreen mode in Reader with pagination.

v0.5.8
- Added an ability to view a list of books uploaded to KyBook cloud and free up space by deleting them.
- Fixed an issue with the status bar in a fullscreen mode when using the advanced interface.
- Now the status bar on iPhone X in hidden in a fullscreen by default. To return to the previous behaviour opt in "iPhone X Notch" in the Reader settings.
- Fixed a sort order in the Photos picker.
- Removed the delay in calculating the remaining pages in the current chapter.
- Improved synchronization of edited or deleted the cataloguer's categories (seria, author, publisher, subject).
v0.5.8
2018-10-29
v0.5.8
- Added an ability to view a list of books uploaded to KyBook cloud and free up space by deleting them.
- Fixed an issue with the status bar in a fullscreen mode when using the advanced interface.
- Now the status bar on iPhone X in hidden in a fullscreen by default. To return to the previous behaviour opt in "iPhone X Notch" in the Reader settings.
- Fixed a sort order in the Photos picker.
- Removed the delay in calculating the remaining pages in the current chapter.
- Improved synchronization of edited or deleted the cataloguer's categories (seria, author, publisher, subject).

v0.5.7
- Added an ability to view a web page of a book's author in the cataloguer bookshelf.
- Various bug fixes and stability improvements.
0.5.7
2018-10-25
v0.5.7
- Added an ability to view a web page of a book's author in the cataloguer bookshelf.
- Various bug fixes and stability improvements.

v0.5.6
- Trash Bin for deleted books.
- Feature to manually to add a download link.
- Fixed crashes when opening some EPubs.
- Various bug fixes and stability improvements.
0.5.6
2018-10-15
v0.5.6
- Trash Bin for deleted books.
- Feature to manually to add a download link.
- Fixed crashes when opening some EPubs.
- Various bug fixes and stability improvements.

v0.5.5
- Reader rotation lock (available on iPhone only).
- Reader draws a full-sized hyphen in EPUB,MOBI books when the readability setting `Hanging punctuation` is disabled.
- Added an ability to batch download from OPDS Catalog (requires Pro).
- Added an ability to select multiple books in the Catalogue categories "New", "Read", "Unread", etc.
- Fixed the crash during selection a sentence spread on multiple pages in PDF/DJVU books.
- Fixed an issue with the reader header/footer in an advanced interface and a fullscreen mode.
- Various minor improvements and bug fixes.
0.5.5
2018-10-02
- Reader rotation lock (available on iPhone only).
- Reader draws a full-sized hyphen in EPUB,MOBI books when the readability setting `Hanging punctuation` is disabled.
- Added an ability to batch download from OPDS Catalog (requires Pro).
- Added an ability to select multiple books in the Catalogue categories "New", "Read", "Unread", etc.
- Fixed the crash during selection a sentence spread on multiple pages in PDF/DJVU books.
- Fixed an issue with the reader header/footer in an advanced interface and a fullscreen mode.
- Various minor improvements and bug fixes.

Many thanks to Alexandre, Roman Meyer and Dr. Karl B. Isaac for reporting issues.

v0.5.4
- Optimized the work of the bookcovers cache
- Improved tab switching in the advanced mode of user interface
- Implemented the restoring of the pinned tab in the advanced mode of the user interface after the application restart
- Added the ability to batch editing of the books metadata (requires Pro)
- Added "All Books" category in the Cataloguer
- Added support for Caliber Content Server Tags/Series info when downloading a book from OPDS catalog
- Added filtering of child shelves when searching in the bookshelf
- Fixed an issue with an repeating alert 'Mock filestore' for the shared folder (SMB/CIFS)
0.5.4
2018-09-24
- Optimized the work of the bookcovers cache
- Improved tab switching in the advanced mode of user interface
- Implemented the restoring of the pinned tab in the advanced mode of the user interface after the application restart
- Added the ability to batch editing of the books metadata (requires Pro)
- Added "All Books" category in the Cataloguer
- Added support for Caliber Content Server Tags/Series info when downloading a book from OPDS catalog
- Added filtering of child shelves when searching in the bookshelf
- Fixed an issue with an repeating alert 'Mock filestore' for the shared folder (SMB/CIFS)
0.5.3
2018-09-20
- Added an ability to pick Iowan Old Style Font
- Fixed bad layout on iPad 12.9 in "Add WebDAV/Samba/OPDS" Dialogs.
- Added display a full path to deleted files in "Confir Delete" Dialog.
- Implemented a more seamless interaction with cloud storage.
- Increased the maximum values of the text margin in the Reader.
- Added support for an external keyboard in the Reader.
- Added an ability to change/set the password in the KyBook Account.
- Added display of a generated cover in the book cell when a book does not have a cover.
- Fixed bad line breaks (in hyphenated text) on contractions (apostrophes).
- Improved the English localization (Many thanks to github.com/karlic for the help)
- Few bug fixes and minor improvements.

Cheat Codes for In-App Purchases

Item Price iPhone/iPad Android
Upgrade to Pro
(Unlocks Pro features.)
$4.99
Free
IH657923895✱✱✱✱✱ A38D701✱✱✱✱✱
Yearly subscription
(Ebooks metadata/file synchronisation.)
$14.99
Free
IH915317912✱✱✱✱✱ 8C7A046✱✱✱✱✱
3 months subscription
(Ebooks metadata/file synchronisation.)
$4.49
Free
IH957138440✱✱✱✱✱ 0D296DA✱✱✱✱✱
Upgrade to Pro (Discount)
(Unlocks Pro features.)
$2.99
Free
IH260930911✱✱✱✱✱ B0098B0✱✱✱✱✱

Ways to hack KyBook 3 Ebook Reader

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Ratings

4.6 out of 5
3 126 Ratings

Reviews

Iconoclasticjarhead,
The best out there.
This is a truly wonderful and incredibly powerful reader app. The features that you have at your disposal here are unbelievably intuitive...and when compared with 95% of other reader apps, it’s head and shoulders above the competition. If you have an iPad or other tablet with a decent sized screen, say 7” or more, then you are in store for a real treat! I have the 12+” IPad Pro and I find myself delighting in looking at my digital books in their library almost as much as I like reading the actual books! This is due to all the really cool customization features that are included within...beware though....it is extremely addictive!!! I have zero complaints. Do yourself a favor and grab this app and start building a custom library of beautiful digital books! What? Don’t like the cover art on a particular book? Would you have done better, you think? Well, same here! Guess what...just like the pages of The Good Book (as highlighted in Stephen King’s “The Shawshank Redemption”)...”salvation lies within”! Jump on in here with me, my friends....the water is fine!
NebraskaJer,
Was a great app
Version 2 was great, awesome, unique and a must install. Now version 3 and not much has changed but a new pricing model. Why??!??? I paid lads than three months ago and would not mind to upgrade to version 3. Show me the benefits and what is better about. Why not have a discount for version 2 holders? Then on top of that you have a subscription mode? Why do you give me a pro “upgrade” model and then ask for subscription? Ugh. Did Adobe or Microsoft buy you or something. Another day another app that wants to jump on the SAAS model. Very unhappy. I guess I will convert all mobi and epub to pdf or just import into iBooks. Another app down the tube. What is the point of a “subscription” model for this? I understand making some money and keeping it updated so charge me a flat fee. I use it once a month or so, so I am not doing the rolling subscription. Uninstalling and keeping version 2 until a response is heard or you roll back on the decision. I have a cloud subscription for iCloud so why can’t I download and sync with that? I have all my ebooks there already and would love it to see your team utilize iCloud fully. Why get in the business of making a book storage server? Apple and Google can do it way better and cheaper. Please rethink this and stick to what you are good at. Creating a book reader. If this continues I hope Apple buys this app and rolls it into iBooks. Win-win for me. Thanks anyway.
ChishaWolf,
Is better support for Chinese language possible?
It’s the best offline e-book reader I can find, but as one who read in both English and Chinese, I would be really happy if some features are improved. 1. Lack of support of GBK Encoding. GBK is one of the few encoding methods for Simplified Chinese. This (lacking of) makes some e-books impossible to read in this software. 2. Kind of weird typesetting. Certain punctuations arranged wrongly, e.g., according to the Chinese typesetting rules “》” should never be the first character of a line. 3. Can’t assign font for certain book, only global settings available. This is important because different fonts support (or are designed for) different languages. For example, when trying to use the stock font Georgia to display Chinese characters, it fallbacks to Pinfang (the default Apple font for Chinese). And when trying to use my daily drive Chinese font Source Han Serif to display a chunk of English, it displays some punctuations weirdly. It would be okay if one favors sans-serifs, they can simply use Pinfang, but not me. Also, some books (I think) mark the wrong section (that is, the whole book) as sans serif, and some don’t, so I would also need this function if I’m an English-only reader.
Thanks..........,
The Only Ebook App You Should Get!
I was surprised how distinguished this app was from it’s counterparts.
I only started using this app since it was the only one of ten other apps that allowed me to add books to it via 3uTools.
But once I started going through the features, I found that this app was much more than I expected it to be.
Dark-Mode was something that I thought was vital for readers, at least for those that read for hours, so I found it abhours that this seemed to be a feature that was either lacking or missing because you didn’t upgrade to “Pro” for $7/Month. That figure didn’t really exist, it’s rhetorical.
Long gone are the days when you used to do one-time fees and never worry about it again.
But not only can you pay a one-time fee in this app, the reason why I even bought it in the first place was because this app didn’t restrict any features just because you were a free user.
At least not any that stood out enough for me to not want to use the app anymore.
It had Dark-Mode and the ability to add your own fonts.
That’s all I expected Apple to add to iBooks but since it doesn’t seem like they’re moving off of the old iBooks from 2008, you have to find an app that has these features.
This app has everything that I need and even more features that I didn’t know I needed.
As long as this app offers a one-time purchase option (which was for options I don’t even use) then this app will always be above all the other Ebook apps out there.
Parsica,
The best but with a couple of defects
I am a book lover and this is the best comprehensive app I’ve found in app store for reading and managing my library, but there are a couple of shortcomings that nags me; first with regard to pdf files the first kybook app (which is not updated any more) had a better pdf engine (or I suppose so) because one could magnify documents to a larger scale and this was very helpful in reading pdfs that were in double page format or the fonts are very tiny(very handy when you don’t have glasses around) and second if you import a book more than one copy (erroneously) and later need to delete extra copies all files are deleted and you cannot save the original copy so you have to keep all copies together (and waste some space) or delete all copies of the book and then import it it again once (if you have access to the book).
In the end I recommend you to buy the pro version because it’s very cheap compared to it’s capabilities.
_Babe^576,
something wrong with azw3
It’s a wonderful app, but I found there is something wrong with azw3 book. I have a kindle manga(bought from Amazon),97MB, a colored one, this app can only read the first 58 pages(in total there is 180 pages), but the index works, it shows the title of contents after 58 pages, but can’t show the page number for them. And when I tap the titles after 58pages, the app crashed. So I think there is something wrong with this app reading azw3 format, or big azw3 format files(but colored mangas are always big files). Maybe you can check it and fix the bug??
Again, it’s a good app! But please fix the bugs!
Jd966875,
Good app but has potential to be better
I really like KyBook 3, particularly it’s ability to handle multiple book formats. Being able to customize your theme is also a feature I really like. Where the app can be improved is in the syncing capability. As of now I have been unable to create an account to login and sync. If I open a book on the app on my phone, the iPad version doesn’t sync so I can access my annotations. I often switch between my phone and ipad so having the app back up to the cloud or sync is important. For example, I can read imported books on the kindle and iBook apps and my annotations are synced across the devices. The lack of synchronization capacity is the main reason I have not made KyBook 3 my only/main reading app.
Julo Satran,
Probably the best multiformat reader avaible
It good, reliable and easy to use and the OPDS makes it the easiest to connect to commercial and private/personal libraries. The developer answers are sometimes hard to read (and may seem rude) but that is mostly a language issue.
Some of the developer decisions are of questionable value - e.g., books wrongly labelled as iso1 when they should be labelled unicode8 are not displayed well on kybook while the Apple books app displays them well - and refusing the use of heuristics when others use them - made me to spend some time and effort to relabel some/many old books (with scripts) that where all usable in other readers. The decision to monetize by charging for sync through a subscription is understandable (the developer has to make a living too) but I am not sure it is wisest.
turkicnomad,
Truly Excellent Software that’s Stuck in Beta
I’m fairly certain only one programmer is responsible for the full library of KyBook versions. Every one of them has been well polished and well designed. This is no different, and for that, I applaud the dev. There are a few broken elements including the account creation (though it is superfluous) and some WebDAV integration (there are workarounds), but that doesn’t change diminish my rating at all.

I’m sad that the updates seem to have stopped in the last 6 months because there is plenty of potential untapped. For instance, Goodreads integration and syncing metadata (reading position, notes, bookmarks, etc.) with a cloud. Hopefully, this project is not dead!
Alec Fairfield,
The best e-reader in the store
This app is a very well made reader. It allows for a huge amount of customization and works with many ebook formats. It also has a search and download function where you can add your own archives. It honestly has more features than I’m probably aware of. It is the only app I’ve used that can shine a light to the kindle app.

All that being said the only feature it is missing and I hope the developers can add in the future is the ability to predict how long until you finish a chapter. In the kindle app it can give an estimate of time remaining in a chapter based on how quickly you’ve been reading.