Doesn’t work at all
Response from developer
It might help to read the app description. Bookoscope is not an ereader; it’s an OPDS catalog search tool.

Browse and download public domain ebooks or access your own self-hosted library. This app crawls OPDS endpoints, caches book data, and allows quick export to your preferred ereader.
1.5.0
December 29, 2024
The app now tracks titles it's seen before, in order to prioritize "New" titles when you're not searching
It might help to read the app description. Bookoscope is not an ereader; it’s an OPDS catalog search tool.
Bookoscope is an ebook catalog crawler that allows you to browse your self-hosted ebook library via OPDS endpoints or download public domain classics. It caches book data for fast searching and quick export to your ereader.
No, Bookoscope does not contain advertisements. It is a paid application available for $2.99.
Bookoscope is compatible with iPhone, iPad, and iPod devices. It is designed to work with any ebook server that supports OPDS 1.0 functionality.
Bookoscope includes access to over 70,000 public domain books from Project Gutenberg, featuring classics like Moby Dick, Frankenstein, and works by Shakespeare.
No, Bookoscope is not an ebook reader. It functions as a catalog and downloader, allowing you to export books to your preferred ereader application.
The latest version, 1.5.0, was released on December 29, 2024. Updates are provided by the developer, Isaac Lyman.
Bookoscope has an age rating of 12+, making it suitable for a wide range of users interested in accessing ebooks.
OPDS (Open Publication Distribution System) is an open standard for web endpoints that expose ebook catalogs. Bookoscope uses OPDS to connect to and crawl both personal ebook libraries and public domain sources.