When comparing Icecream Ebook Reader vs Sumatra, the Slant community recommends Sumatra for most people. In the question“What are the best desktop readers?” Sumatra is ranked 2nd while Icecream Ebook Reader is ranked 6th. The most important reason people chose Sumatra is:
Sumatra is available for free, licensed under GPL with source code available on [GitHub](https://github.com/sumatrapdfreader/sumatrapdf).
Ranked in these QuestionsQuestion Ranking
Pro It is much more lighter than Adobe Digital Editions, Calibre, etc
So, Icecream ebook reader will work faster.
Pro Pleasant reading experience
The app tracks how much of the book has been read, jumping between chapters or bookmarks can be done with a few clicks, and there's even a distraction-free mode that takes away all the interface and allows focusing on the book.
Pro Clean, customizable UI
The application has an easy to use and understand interface with important features such as search always within easy reach at the top.
The interface can also be customized to best suit wishes. For example, font size can be changed, there's choice between single and double column view when reading books, or table and bookshelf view when managing the library.
Pro Free and open source
Sumatra is available for free, licensed under GPL with source code available on GitHub.
Pro Reads many file types
Including PDF, XPS, DjVu, CHM, EPUB, Mobi, FictionBook, PalmDoc, and comic books.
Pro Book updates on the fly
If Book font, style is changed, Sumatra will take the update instantly, No need to close first and import again! Huge time saver for self publishing.
The application consists of a single file that can be run without installation. You can put it on an external device, such as an usb thumb stick and run it on any Windows machine from the thumb stick.
It's available in 69 languages.
Con Windows only
No Linux or OSX versions available.