It is an app that lets you open text files, comics files, compressed files, PDFs, and epub files stored in your Android phone or web hard drive and view them like a book.

※ By default, content (novel/comic files) is not provided.
※ Only Google Play Protect certified devices are supported.

The main features are as follows.

1. Text Viewer

- txt, csv, smi, sub, srt support
- epub support (text and picture display)
- Open compressed text (zip, rar, 7z): Open directly without decompression
- Font (calligraphy/Myeongjo) change, size/line spacing/margin adjustment
- Fix character encoding (auto/EUC-KR/UTF-8,...)
- Change text color/background color
- How to turn pages: arrow/screen tap/screen drag/volume button
- Flip effect (animation): roll, slide, push, scroll up and down
- Quick search: navigation bar, dial, page input
- Add/Rename/Sort/View Bookmarks
- Reading: language selection, speed control, special characters/kanji exclusion options
- Slideshow support: speed control
※ Background execution possible in the paid version
- Text Search: Search one by one, all
- Text editing: edit, add new file
- Text Alignment: Left, Both Sides, Horizontal 2 Views
- Support for two-column view
- Organize sentences, divide files (long tap on file name)

2. Manga Viewer

- Supports jpg, png, gif, bmp, webp, tiff, zip, rar, 7z, cbz, cbr, cb7, pdf files
- Open compressed image (zip, rar, 7z): Open directly without decompression
- Double compression support
- pdf support: up to 8x magnification option and sharp option when magnified
- Left-to-right order/divide: Left -> Right, Right->Left (Japanese style), View 2 horizontally
- Zoom in/out/magnifying glass (when animation is not used)
- How to turn pages: arrow/screen tap/screen drag/volume button
- Flip effect (animation): scroll left and right, scroll up and down, scroll webtoon
※ Webtoon Scroll enables smooth scrolling of very long pictures
- Quick search: navigation bar, dial, page input
- Add/Rename/Sort/View Bookmarks
- Slideshow support: set in seconds
- keep the picture enlarged
- Animated gif support
- Picture rotation support (manual rotation/JPEG auto rotation)

3. File function

- Reading information color display: red (recent), green (partially read), blue (completely read)
- Preview: Tile type (large, small), view details
- Select file extension
- Sort: name, size, date
- Delete (multiple) support
- Rename support
- Search support: name, content, picture

4. Others

- theme/color support
- Language selection support (Korean, Chinese, Japanese, English)
- SFTP (secure file transport protocol) support
- FTP (file transport protocol) support
- SMB (Windows shared folder, Samba) support
- Google Drive support
- Dropbox support
- MS OneDrive support
- password lock
- Note 9 and above spen support: page turning, slideshow pause
- Headset button support: Pause slideshow
- Media button (Bluetooth earphone, etc.) support: Pause reading
- Backup/restore settings (compatible with Maru, Maru Viewer, and Ara)
- Shortcut management function (eg, add/delete Naver NDrive app shortcut)

permission information
- Storage space (required): Read contents or edit/delete files