What are some alternatives?
When comparing iFile and FileApp, you can also consider the following products
Filza File Manager - Explore files and folders with list view or grid view. View / edit files with powerful viewers.
Documents by Readdle - A central hub for all your files.
Decipher Backup Repair - Fix corrupt and buggy iPhone backups so that you can restore your backup in iTunes!
Files-finder edition - If you have to name one app which you miss most on your iPad, what would that be?
GoodReader - With GoodReader on your iPhone, iPod Touch or iPad, you can read virtually anything, anywhere.
Files - Keep everything organized without breaking your flow. Dropbox brings your files together, in one central place. They're easy to find and safely synced across all your devices—so you can access them anytime, anywhere.