eBoox vs Readest

eBoox is an ebook reader for Android, iOS and web, supporting formats such as EPUB, FB2, MOBI, DOC, DOCX, TXT, ODT, RTF, HTML, AZW, AZW3, CBR, CBZ, ZIP and RAR. Books synchronize across its Android, iOS and web versions, and offline reading is available. The service is described as free and without ads. Reading options include selected settings and night mode; annotations include bookmarks, three-color highlights, interactive links and notes. Import options differ by platform: Android can load books from phone folders, SD cards, cloud storage and web browsers, while the iOS listing names iCloud, Google Drive, Dropbox and Yandex.Disk, as well as transfer through iTunes, email, a browser or AirDrop. PDF support is listed as beta on iOS. The service says pages load instantly. The official site directs readers to a Telegram group for questions and support. Google Play states that the developer declares no third-party data sharing or data collection, and encryption in transit.

Readest is an ebook reader for EPUB, PDF, MOBI, AZW3, FB2, CBZ and TXT files, with additional listed support for ZIP and Markdown. Readers can highlight, bookmark, take notes and search across their ebook library. Parallel Read presents two books together with synchronized scrolling and navigation. The app can translate passages, look up words in Wiktionary or Wikipedia, and read books aloud using on-device, browser or cloud text-to-speech. It connects to OPDS catalogs and calibre libraries, and can export highlights to Readwise or Hardcover. Readest runs on the web, Windows, macOS, Linux, iOS and Android, and supports screen readers and offline reading. The software is open source under AGPL-3.0. Ebooks, notes, highlights and bookmarks are stored locally by default; optional third-party cloud sync requires a paid plan. The free plan includes 500 MB of cloud storage, and paid plans start at $4.99/mo.