This app has the following functions.* Support installation to external memory [Install to external memory, automatic update check may be invalid]* You can add novels to favorites to keep up with your progress.* Automatically check the novel update function, it will prompt when there is an update of the novel, this function only checks for the favorite novels.* Automatically record the position of reading the text. If there is a favorite, the last read chapter will also be recorded.* Backup function, you can back up favorites, reading records.* You can adjust the reading environment by yourself, including text color, background color, etc.* Day and night mode, you can set the text color and background color of the two modes separately.* Support volume keys to turn pages.* Support offline reading.* You can read TXT, EPUB, and you can download novels to read.* Support Google Drive sync function* Support reading function