Apps similar to Papyrix include KOReader, which is free and open source. Other options are TernOS, Inx and CrossPoint Reader. In total there are four Ebook Readers like Papyrix for Linux, Android, Mac and Windows.
An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Kindle, Kobo, PocketBook, Linux and Android devices.
A Rust-based firmware with reading and PalmOS functionality for XTEink X4 pocket reader.
United Kingdom
Inx is a community firmware for the Xteink X4. It is focused on a cleaner reading experience, better EPUB support, native image rendering, and practical device tools.
CrossPoint is open-source e-reader firmware - community-built, fully hackable, free forever. It's maintained by a growing community of developers and readers who believe your device should do what you want - not what a manufacturer decided for you.
