What are some alternatives?
When comparing FileApp and GoodReader, 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.
FBReader - FBReader is an e-book reader for various platforms. Features:
Documents by Readdle - A central hub for all your files.
calibre - Ebook manager, viewer & converter
Filza File Manager - Explore files and folders with list view or grid view. View / edit files with powerful viewers.
Amazon Kindle - Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and...