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CLUSTER OFFLINE-READER-READING · 22 ENTRIES · EARLIEST ENTRY 2012-03-20

Ebook reader and sync apps

This cluster consists of ebook reader applications for mobile and desktop, focusing on formats like EPUB and PDF, with features such as annotations, offline access, and cross-device sync, often integrating with Calibre or personal book servers. Entries appear sporadically from March 2012 through June 2026, with a long gap between 2013 and 2022 and a concentration in 2025 and 2026. The leading traction signals are Liseur, Pageo: Calibre Epub Reader, and Quire, though all currently show zero stars.

Entry timeline

ENTRY TIMELINE

MAR 2012: 1JUN 2024: 1NOV 2024: 1MAR 2025: 1APR 2025: 1MAR 2026: 1APR 2026: 2JUN 2026: 2JUL 2026: 2AUG 2026: 2SEP 2026: 4OCT 2026: 4
MAR 2012OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 3 hand-coded · 17 unlabelled

Operator · 5 hobby · 1 indie · 1 commercial · 2 open source · 11 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01Readest - eBook Reader0★20 daysliveEbook reader app for heavy readers that opens multiple file formats, syncs books, notes, and reading positions across devices, and supports text-to-speech, translation, annotation.
  2. 02Liseur0★10 dayslivehand-codedopen sourceAndroid ebook reader that opens EPUB files offline and syncs reading position, highlights, and notes with a personal book server.
  3. 03LiBook - eBook Reader0★9 daysliveEbook reader app that imports EPUB, PDF, and TXT files, offers character tracking and text-to-speech, and lets users organize and customize their reading experience.
  4. 04Calibre ebook - Pageo0★16 daysliveEbook reader that syncs wirelessly with Calibre libraries, converts files to EPUB, and tracks reading progress across devices.
  5. 05kobo-hardcover-sync0★8 days—hobbyDesktop app for book readers that syncs reading progress from a Kobo e-reader to a Hardcover bookshelf, updating status, progress, and finish dates.
  6. 06Miraf0★18 dayslivehobbyPrivate ebook reader that lets users import EPUB files and continue reading across devices with account sync.
  7. 07MingScribe0★20 days—hand-codedhobbyEbook reader app that opens TXT, EPUB, and PDF files with annotations, full-text search, progress memory, theme options,and conversion for additional formats.
  8. 08LocalShelf0★13 days—hobbyDesktop app that organizes PDF ebooks into a visual library with covers, tags, and reading progress tracking.
  9. 09ShelfMark0★2 days—hobbyDesktop app that scans a local ebook collection, finds matching catalog records, and edits metadata in EPUB, FB2, CBZ, and PDF files.
  10. 10vivo-buecher0★8 days—Android app for reading PDF books that hides full content behind a subscription, remembers reading progress, and lets admins upload books.
  11. 11Aquile-Reader-Premium0★4 days—Ebook reader that opens EPUB, PDF, and comics, syncs progress and notes, and provides read-aloud and study tools across Windows and Android.
  12. 12Calibre-Web-Companion0★1 moliveopen sourceA companion app for Calibre-Web that lets you browse, read, manage and sync your ebook library on the go.
  13. 13BookWave: EPUB & PDF Reader0★1 moliveindieE-book reader app for iPhone and iPad that imports EPUB and PDF files, reads aloud with highlighted text, and syncs progress via iCloud.
  14. 14plpdf0★2 moliveDesktop app that reads PDF and EPUB books with collections, annotations, and note-taking features.
  15. 15Calimob0★2 moliveMobile app that syncs a Calibre ebook library to devices, supporting e-book, comic, PDF, and audiobook reading with annotations and cloud storage.
  16. 16Stanza Redux0★3 moliveEbook reader that imports EPUB files, organizes a personal library, and downloads free public-domain books from online catalogs.
  17. 17Ebook Reader: Books & Library0★4 moliveE-book reader app that imports EPUB and PDF files, supports highlighting and notes, tracks reading goals, and offers an AI chat for questions.
  18. 18Louise Reader0★4 molivecommercialReader app for ebooks and audiobooks that opens personal EPUB and PDF files, plus books acquired from independent bookstores or digital libraries.
  19. 19Quill - AI Book Reader0★4 moliveEbook reader app that provides instant definitions, translations, and contextual explanations for words and passages in imported books.
  20. 20Lendariox1★1 yrabandoned—hand-codedEbook reader app supporting PDF and EPUB formats, with annotations, reading progress, and offline synchronization.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.