Librera Reader vs Readest

Librera Reader is an ebook and document reader for Android, with a browser-based reader and a macOS beta also listed. It opens formats including PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, and CBR. Readers can locate files by scanning folders, browsing with the in-app file explorer, or returning to recent items. Reading tools include bookmarks, annotations, text search, EPUB3 tables of contents, and adjustable Day and Night modes. Progress and bookmarks can sync between Android devices through Google Drive. The app also offers configurable text-to-speech with a built-in media player, online catalogs, cloud sources, and online and offline dictionaries. Access can be restricted with a password or the device’s fingerprint authentication. The free plan is ad-supported; Librera PRO removes ads and costs 5.99 USD once. The maker lists Kyiv, Ukraine as its headquarters.

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.