The iTunes App Store has the Box Cloud Storage iOS App w/ 50GB Storage for FREE.
Please note that you must sign into iTunes to download. Also, jnew customer must download the new Box app for iPhone and iPad app (v3.0) between January 15, 2014 and February 15, 2014. Existing Box app users will have to download the new app and log out and back in to receive the upgrade.
With 50GB of free storage, Box makes it easy to store, manage and work with all your files and documents wherever you are – on the web, from your desktop and on your iPhone and iPad.
What’s New in Version 3.0.0 Completely re-written app! ・New navigation and redesigned UI ・New preview experience for documents, photos and videos ・Faster document rendering and photo loading