Box.com offers 50GB of Box.com Cloud Storage Space for free when you download Box for iPhone or iPad. (Log in and the storage space should appear on your account. Existing users can download the update, then log out and log back in to be upgraded to 50GB of storage.) That's tied with our August mention as the best cloud storage deal we've seen from Box.com. Uploads are limited to file sizes of 250MB or less. Deal ends February 15.