Cloud Commander - Cloud Commander is a file manager that allows you to quickly move your photos and documents between your iPad, Mac and popular cloud storage services, including Dropbox, Box, SkyDrive, Google Drive and Picasa.
The app can connect to your Mac wirelessly over WiFi, or via USB using iTunes File Sharing
With SugarSync, instantly access cloud-synced files, photos and music from all your computers. View files and photos, stream music, and share files (and even complete folders) with friends and colleagues – no tethering required
Inbox Storage for iPhone/iPad - Inbox Storage is an online storage solution that allows you to safely store your files in the cloud and sync them across all your devices.
Create an account to get 2 GB of free storage space for your photos, videos, music, documents and other file types
Documents by Readdle - ReaddleDocs is a revolutionary document viewer, file manager and attachment saver for iPad.
It can catch documents from any source you can imagine: PC or Mac computers, web sites, email attachments, iDisk, Dropbox and other online file storages and even iPhones