iStorage 2HD - For its simple user interface and the advanced way of working, iStorage 2HD is simply the ultimate file manager and organizer for the iOS devices.
Documents by Readdle - A central hub for all your files.
FileBrowser - FileBrowser is a multifunctional file manager for the iOS devices that are used for accessing files in both local and networked environment.
FE File Explorer - The one-stop files solution
Filza File Manager - Explore files and folders with list view or grid view. View / edit files with powerful viewers.
FileApp - FileApp is an iPhone and iPad File System and Document Viewer.