CLUSTER FORMATS-READER-CUSTOMIZABLE · 27 ENTRIES · EARLIEST ENTRY 2021-03-12
Ebook reader apps
The cluster comprises 24 mobile e-book reader apps focused on importing and reading DRM-free personal files across formats like EPUB, PDF, and MOBI, with heavy emphasis on customization (fonts, themes, text size) and reading aids (bookmarks, text-to-speech, offline access). Entries before the index start are spread thinly across nearly two decades (2009-2026), with occasional small bursts (e.g., 3 in 2021-03, 2 in 2022-10), but no consistent upward trend. Traction leaders all show 0 stars, indicating no member has achieved notable activity; the highest-activity apps are Hedgehog reader, LiBook, and KRed Reader, but their signal is negligible.
Entry timeline
ENTRY TIMELINE
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 · 5 hand-coded · 2 unlabelled
Operator · 2 commercial · 3 open source · 2 unlabelled
Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 7 listed below. Unlabelled means nothing has decided yet — not that the answer is small.
- 21Book Reader: eBook Library0★4 yrabandonedlivehand-codedBook reader app that imports eBooks from device or URL, with adjustable font, brightness, background, bookmarks, search, and personal reading statistics.
- 22Ebook Reader Pro0★5 yrabandonedlivehand-codedcommercialMobile ebook reader supporting multiple document formats with bookmarking, text search, zoom, and reading history.
- 23Arianna0★unknownliveopen sourceAn ebook reader application that automatically discovers ebook files and organizes them into a library sorted by genre and author.
- 24EPUB Reader - Reader for epub format0★9 yrabandonedlivehand-codedcommercialEPUB reader app that supports various formats and offers features like night mode, cloud integration, and text customization.
- 25pybookreader0★7 yrabandonedlivehand-codedopen sourceE-book reader app that displays books with ornamented formatting.
- 26Bookworm0★7 yrabandonedlivehand-codedopen sourceDesktop eBook reader that manages and tags a personal library across multiple formats like EPUB, PDF, and MOBI.
- 27Books Reader - Pocket Library0★9 mostaleliveEbook reader app that manages and reads various formats with customization and library organization.
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.