KyBook 3 vs MapleRead

KyBook 3 is an e-book reader and cataloging app for iOS, with macOS support on Apple M1 Macs running macOS 11 or later. It opens EPUB, DRM-free PDF, MOBI, AZW3, DjVu, FictionBook, comic-book, audiobook, plain-text and rich-text files. Reading controls include day, night and sepia themes, scrolling, curl or slide page turns, auto scrolling and text-to-speech. Readers can mark passages, add bookmarks and draw annotations, then export those annotations as Markdown, HTML, PDF or RTF. OPDS support includes a list of known catalogs and the ability to add catalogs such as a Calibre content server. Files can come from listed cloud services, SMB/CIFS shares or WebDAV. The app can serve device files over Wi-Fi and stream audiobooks from cloud storage. Synchronization of metadata, files and reading activity requires a subscription. Pro features require a one-time purchase. The free download includes in-app purchases.

MapleRead is an iOS e-book reader family with CX, CE, and SE editions. Its EPUB reader offers adjustable styles, layouts, themes, and fonts. It can generate pseudo audiobooks using narrator voices in over 40 languages and supports synchronized immersion reading. Readers can look up words, translate sentences, save vocabulary, highlight passages, and add notes. Books can be organized with sets and tags, and their metadata can be edited.

All editions read DRM-free, password-free EPUB files; SE also reads DRM-free, password-free PDFs. MapleRead works with Calibre and supports importing or transferring books through OPDS, HTML, PC Upload, iTunes, and AirDrop. Cloud sync covers reading positions, notes, vocabulary, bookmarks, and book-set membership, but not book files; synced data can be viewed in a browser on desktop or mobile. CX is free to try with limitations and in-app purchases. CE costs 6.99 USD once, SE costs 8.99 USD once, and the SE-CE bundle costs 10.49 USD once.