Program is designed for reading fiction books. You can read books in any of the following formats: fb2/fbz, fb3, mobi/prc/azw/azw3 (No DRM), epub (No DRM), doc/rtf/docx/odt, html, txt, odt formats (and you can open zip files with books). You can use external dictionary for translate words and sentences. You have the opportunity to correct typos in fb2 and txt files. The application can arrange hyphenation in 20 languages. Day / night profiles are available for comfortable reading at any time of the day. Custom font settings. Custom color settings. One- and two-page mode with automatic switch to the two-page mode in landscape. OpenGL paging animation. Autoscroll "wave". Navigation in the text: by percents, by pages, to the beginning/end of the text, to the next/previous chapter. 9 tap-zones for short and long taps, gestures, gestures with two fingers, resize text by "pinch", to assign the actions for buttons.Clock behind the text. Ability to hold screen backlight (up to 10 minutes of inactivity). Synchronize reading position via network or file system.