What are some alternatives?
When comparing FileApp and Files-finder edition, you can also consider the following products
iFile - If you need a new file manager for your device, iFile might be the answer you seek.
Documents by Readdle - A central hub for all your files.
Filza File Manager - Explore files and folders with list view or grid view. View / edit files with powerful viewers.
FileBrowser - FileBrowser is a multifunctional file manager for the iOS devices that are used for accessing files in both local and networked environment.
GoodReader - With GoodReader on your iPhone, iPod Touch or iPad, you can read virtually anything, anywhere.
iFiles - iFiles 2 is a fully featured file manager for iOS