calibre - Ebook manager, viewer & converter
Universal Book Reader - Just like its name, Universal Book Reader is really a universal book reading application allowing you to read the eBooks from the convenience of your smartphones.
Foliate - A simple and modern eBook viewer.
Cool Reader - Fast and small cross-platform eBook reader for desktops and handheld devices
Amazon Kindle - Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and...
iReader - iReader is one of the most accomplished ways to read the books right from your smartphones.