File Manager Pro
You can download your files from your computer using iTunes or open documents directly from Email. In addition, File Manager Pro connects to a large variety of cloud services, such as Dropbox or Box.com. With iCloud you can seamlessly synchronize your content on all your iOS devices. Download features include:
-iCloud Synchronization
-Google Drive
-Dropbox
-OneDrive
-Box.com
-SugarSync
-WiFi Connect
-Browser Download
-Open from Email
-Open docs from other apps
seen the writing on the wall from the upcoming iOS11 'Files' app