Review of Cool Reader powered by the Slant community.
Ranked in these QuestionsQuestion Ranking
Pro Free and open source
Cool Reader is available completely free and is also open source.
Pro A wide range of formats supported
Cool Reader supports epub (non-DRM), fb2, doc, txt, rtf, html, chm, tcr, pdb, prc, mobi (non-DRM) and pml formats.
Con Does not support DRM .epubs
.epubs with DRM are not supported by Cool Reader.