KyBook vs MapleRead CX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KyBook
This app is a versatile e-book reader supporting a wide range of formats including EPUB, PDF, and audiobooks. It offers extensive customization for reading modes, cloud storage integration, and easy book organization. Advanced features like DJVU support and speed reading are available via in-app purchase.
- Supports EPUB, FB2, PDF, DJVU, CBR, CBZ, MP3, M4A, M4B formats
- OPDS catalogs and cloud storage integration
- Customizable reading mode settings
- Book organization and cataloging
- Text-to-speech and dictionary support
- Speed Reading (RSVP)
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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.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. - Integrated with social networking services (Facebook, Twitter, Vkontakte) - Supports of VK Docs as Cloud Storage - Built-in Web Browser - Supports Tor Network - DJVU and PDF filters - Support of archives in ZIP and RAR format - Password-protected Bookshelves - Speed Reading (RSVP) - Automatic text summarization - Integrated with LitRes.ru - Integrated with Samizdat (samlib.ru) - Supports WebDAV protocol Dear users, DJVU, CHM, Tor Network and 'Speed Reading' requires in-app purchase "Upgrade to Pro Version". You are free to use these features during the trial period. After the trial period You can unlock them via upgrading KyBook to Pro Version.
MapleRead CX
This app offers a unique audio-visual reading experience for EPUB ebooks. Customize book styles, generate pseudo audiobooks with various voices, and enjoy immersive reading with synchronized audio and text. It also functions as a powerful library management tool with extensive customization options.
- Audio-visual EPUB reader
- Pseudo audiobook generation
- Immersion reading (sync audio/text)
- Customizable book styles and themes
- Word lookup and translation
- Library management and organization
- User-defined fonts and highlight colors
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MapleRead is dedicated to enable unique audio-visual reading experience for everyone. ------------ Our MapleRead app family has 3 members, namely SE, CE and CX. - SE is our flagship product with all features. - CE is SE without PDF reader and built-in Library Server. - CX is CE with some limitation. Free to try. - No recurring subscription fees. No ads. Just buy it once. Gratuity optional. - Moreover, SE and CE can be run side-by-side via split-view multitasking. - Recommend SE for use on multiple devices with easy and fast book sharing via Library Server. - Recommend the SE-CE bundle for the best value. ------------ MapleRead includes a superb audio-visual EPUB e-book reader. - It lets you easily modify publisher's original book style to better suit your aesthetic taste. - It lets you instantly generate pseudo audiobooks with a choice of narrator voices over 40 languages. - It enables immersion reading so that you may read and listen to the same book in sync. - Background listening works well too. Compatible with Lock Screen Music Player and CarPlay. MapleRead UI is friendly to users of all ages. - Books can be read in regular and large print. - A choice of UI text sizes makes reading in non-book views much more comfortable. MapleRead is a great learning tool. - It lets you look up words, translate sentences, search text, highlight text and write notes. - It helps you collect vocabulary and organize notes with various priorities. - It provides hooks to user-defined dictionaries, translators, and other tools. - Immersion reading improves your comprehension, especially of foreign-language books. MapleRead is an effective and fast library management tool. - It is designed for you, a book lover, who may own a huge and/or growing book collection. - It lets you keep all your books in one place and well-organized automatically. - It lets you display your books elegantly in style. - It lets you easily repair individual book metadata. - If supports multiple book sets and multiple tags. - It offers multiple ways to import and export books, and works well with Calibre. MapleRead offers unprecedented user-defined customization options. - They include unlimited user-defined fonts, book themes, cover images and library scenes. - Each book theme includes various types of user-defined highlight colors. - Each book can have its own theme, and each EPUB book can have its own style. [For more technical details, screenshots, FAQ and reviews, please visit our website.]
Screenshots
Verdict
The clearest difference is rating: KyBook at 4.4 against MapleRead CX's 3.4. KyBook also leads on ratings volume (466 vs 24) and monetization model (free with in-app purchases vs paid). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. KyBook sells 2 one-off in-app purchases and MapleRead CX sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
KyBook holds the better App Store score, 4.4 against 3.4. That said, the two scores are not equally well evidenced: KyBook has 466 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 71% of KyBook's written reviews are positive against 62% of MapleRead CX's.
KyBook ships an update every 3 weeks, MapleRead CX every 5 weeks. Both last shipped on October 21, 2026.
| Parameter | KyBook | MapleRead CX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (466 ratings) — better | 3.4 (24 ratings) |
| Positive reviews | 71.2% of reviews — better | 61.5% of reviews |
| Number of ratings | 466 — better | 24 |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 50 MB | 26 MB |
| Age rating | 17+ | 4+ |
| Developer | Konstantin Bukreev | Maplepop LLC |
Customer experience
KyBook
MapleRead CX
Bugs and requests
KyBook
Reported bugs
4 issues- Crashes after recent iOS updates
- Text-to-speech function not working properly on newer devices
- Inability to delete books from the app
- Inconsistent theme and color customization behavior
Requested features
5 requests- Add support for more languages
- Improve image handling and layout
- Implement better annotation and highlighting tools
- Provide easier access to main library from subfolders
- Add ability to password protect individual books or folders
MapleRead CX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
KyBook
- Upgrade to Pro Version$0.99
- Upgrade to Pro Version$1.99
MapleRead CX
- Pro Upgrade$6.99









