마루뷰어-만화뷰어텍스트뷰어스캔뷰어소설뷰어 is an Android application that allows users to view text files, comic files, compressed files, PDFs, and epub files stored on their Android phones or web storage as if reading a book. It does not provide content by default and only supports Google Play Protect certified devices. The app's key features include support for various file formats like txt, csv, smi, sub, srt, epub, jpg, png, gif, bmp, webp, tiff, zip, rar, 7z, cbz, cbr, cb7, and pdf, along with functionalities such as font customization, text search, bookmarking, and more. Users can also enjoy features like text-to-speech, slideshow support, and file management capabilities.

With support for multiple languages, themes, and secure file transfer protocols like SFTP, FTP, and SMB, 마루뷰어-만화뷰어텍스트뷰어스캔뷰어소설뷰어 offers a comprehensive reading experience. The app also supports cloud services like Google Drive, Dropbox, and MS OneDrive, along with device-specific features for Samsung Galaxy Note 9 and above. Users can manage shortcuts and customize settings for a personalized reading experience.