Quill 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.



KOReader is described as 'An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Kindle, Kobo, PocketBook, Linux and Android devices' and is a popular PDF Reader in the news & books category. There are more than 50 alternatives to KOReader for a variety of platforms, including Android, Windows, Android Tablet, Mac and Linux apps. The best KOReader alternative is SumatraPDF, which is both free and Open Source. Other great apps like KOReader are calibre, Okular, Librera Reader and MuPDF.
Quill 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.



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