Amazon Kindle
Free
Amazon Kindle is a series of e-readers designed and marketed by Amazon.com.
Polar
Open Source
Polar is an integrated reading environment to actively read, annotate, create flashcards, and track progress.
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.
AlReader
Free
AlReader is a mobile reader app.
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).
Cool Reader
Open Source
Cool Reader is a configurable eBook viewer.
Adobe Digital Editions
Free Personal
Adobe Digital Editions (ADE) is an ebook reader software.
ICE Book Reader Professional
Commercial
ICE Book Reader Professional is an e-book reader. It is also possible to use ICE Book Reader Professional as a teleprompter.
Compare calibre with alternatives
Compare Amazon Kindle and calibre and decide which is most suitable for you.
Compare Cool Reader and calibre and decide which is most suitable for you.
Compare Adobe Digital Editions and calibre and decide which is most suitable for you.
Compare ICE Book Reader Professional and calibre and decide which is most suitable for you.