AlReader vs CoolReader
Book reader compatible with Android. Read formats: fb2, fbz, txt, epub, html, doc, docx, odt, rtf, mobi, prc (PalmDoc), tcr. Supported ZIP and GZ archives. It is possible to specify an encoding of reading file (include 932, 936, 949, 950 code page). Local library. The selection of authors, series, title, publication year, genre. Supported interface languages: russian, english, german, greek, ukrainian, belarusian. Fb2 and TXT file editing. If a file is in an archive, edited file is unpacked to the same directory as the original one.
CoolReader - an open-source program for reading electronic books in a variety of formats for Windows and Linux. There are also versions for OS Android and e-reading devices (LBook, PocketBook)