Quill OS AlternativesPDF & Ebook Readers like Quill OS

Apps similar to Quill OS include KOReader, which is free and open source. Other options are InkBox and Plato (for Kobo). In total there are three Ebook Readers like Quill OS for Linux and Android.

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Quill OS alternatives page was last updated Dec 16, 2025

KOReader
90 likes
An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Kindle, Kobo, PocketBook, Linux and Android devices.
93 KOReader alternatives
Cost / License
Free
Open Source (AGPL-3.0)
Application typeApplication types
Ebook Reader
PDF Reader
Platforms
Linux
Android
Android Tablet
AppImageHub
Kobo Books
Linux Mobile
Flathub
F-Droid
Kindle Fire
OpenAPK
Good alternative?Is KOReader a good alternative to Quill OS?
InkBox
3 likes
InkBox is an open-source, Qt-based eBook reader for Kobo devices. It also comes as an entire native open-source OS and provides support for a number of devices.
Cost / License
Free
Open Source
Application typeApplication types
PDF Reader
Ebook Reader
Origin
Canada
Platforms
Kobo
Canada
Good alternative?Is InkBox a good alternative to Quill OS?
Plato (for Kobo)
3 likes
Document reader for Kobo's e-readers.
Cost / License
Free
Open Source
Application type
Ebook Reader
Origin
International
Platforms
Kobo
Global
Good alternative?Is Plato (for Kobo) a good alternative to Quill OS?

3 of 3 Quill OS alternatives