JetReader

JetReader mainly does two things: helps you get books from your Calibre library onto your device, and gives you a highly customizable eReader for reading them.

Connect directly to a Calibre Content Server, use JetReader as a Calibre Wireless Device, or browse Calibre libraries stored in Dropbox, Google Drive, OneDrive or WebDAV services such as Nextcloud and ownCloud. Download books manually, or let JetReader keep your library up to date automatically in the background. Performance is a major focus, and JetReader has been tested with libraries containing 100,000 books.

Your books can be browsed with flexible search and advanced filtering. Ratings and reading statuses can also be sent back to Calibre automatically.

When you start reading, JetReader keeps your reading progress, bookmarks, annotations, dictionary lookups and statistics synchronized between your devices. You can highlight or underline text, add comments, copy selections, or send text to other apps.

For unfamiliar words, use the built-in dictionary, open a compatible dictionary app, or ask for an AI explanation tailored to the context of the book you're reading.

JetReader also tracks your reading habits and turns them into useful and fun statistics and visualizations on your device, which you can also share with friends if you want to.

One of JetReader's main goals is to be as customizable as possible. You can choose what information is shown while reading, configure touch behaviour and shortcuts, and adjust colors, fonts and other reading settings to suit you.

JetReader is designed with eReaders in mind. High-contrast themes, automatic image color adjustments and other eInk optimizations help make reading comfortable on eInk screens.

See https://jetreader.net for more information, help and updates.

Recent changes:
Added grouping and an option to change the default tap action to the library browser. Improved Calibre custom column support and the lookup/annotation lists, and added support for a few new formats.
Details here: https://jetreader.net/updates