Smart manager for your file operation. tetra filer is a simple and stylish file manager (file explorer) that's focused on SD card file operations. The main concept behind this app is to make the best lightweight, easy and safety file manager for Android?. Features:* List view* Cut, copy, paste and delete* Folder creation* Rename* Search (with wildcards)* Compress and extract* Property* Bookmark (Max 5)* Shortcut* Multiple selection* Sort* Share* Thumbnail view (Image, Movie and APK) Differences between the full version:* Themes* Multiple share* Show hidden files* Limit of the bookmark number