librera.mobi
Librera Reader is a customizable Android application for reading books in formats including PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ and CBR. It offers document discovery via auto-scan, an in-app file explorer and recent lists, plus bookmark, annotation and EPUB3 table-of-contents support. Features include day and night modes, dictionaries, customizable text-to-speech, a media player, multi-word search and a Musician's mode.