A free app for Android, by Autogroup.

EBooki Reader is a fast and user-friendly application that allows you to view and manage eBooks. It is designed to be a simple, fast, and convenient tool that can be used to read your eBooks.

It supports all eBooks formats (PDF, EPUB, EPUB3, WORD, MOBI, DJVU, FB2, FB.ZIP, TXT, RTF, AZW, AZW3, HTML, ODT, XPS, CBZ, CBR, TIFF, PDB, MHT and OPDS Catalogs). It also supports a wide range of document formats (PDF, DOCX, XLSX, TXT, ODT, XPS, etc).

EBooki Reader is a powerful application that can be used to view, manage, and open eBooks. You can customize the appearance of the app and set it to display eBooks in different modes (list, grid, and thumbnail).