Amazon Kindle
Free
Amazon Kindle is a series of e-readers designed and marketed by Amazon.com.
iBooks
Free
iBooks is an e-book application by Apple Inc. for its iOS and macOS operating systems and devices.
EPUBReader
Free
EPUB is an e-book file format with the extension .epub that can be downloaded and read on devices like smartphones, tablets, computers, or e-readers.
NOOK
Free
NOOK is an ebook reading software.
FBReader
Open Source
FBReader is a free ebook reader. Main ebook formats: ePub (including main features of ePub3), Kindle azw3 (mobipocket), fb2(.zip).
Delicious Library
Commercial
Delicious Library is a digital asset management app for Mac OS X.
Adobe Digital Editions
Free Personal
Adobe Digital Editions (ADE) is an ebook reader software.
Compare calibre with alternatives
Compare Amazon Kindle and calibre and decide which is most suitable for you.
Compare Delicious Library and calibre and decide which is most suitable for you.
Compare Adobe Digital Editions and calibre and decide which is most suitable for you.