In March this year Dropbox, the company, acquired an iOS Gmail app called Mailbox. It took a few months for synergies to be established, but all iOS users can gain an additional permanent 1Gb of free Dropbox storage by installing the free Mailbox app, then linking it to Dropbox within the Settings menu. There is no other work or cost involved. Download the app here.
Meanwhile, relative newcomer Copy is delivering a massive referral credit of 5Gb per person.
Copy, like Dropbox, is unobtrusive and provides a folder on your computer where you may save or drag-and-drop files which are then silently synchronised across any other machine connected to your account.
While it is prudent to be concerned about entrusting your files to a third party, Copy is a product of Barracuda Networks, a well-established business that has been providing security, networking and storage products for over 10 years. Copy is built on top of proven Barracuda technologies.
Where Copy differs from Dropbox is with its 256 bit AES encryption and with its attitude towards sharing. With Dropbox, each member of a shared folder has the total amount of space counted against their individual quota. Copy, by contrast, divides the space amongst each user - so a 4Gb folder shared between four people means each person only uses 1Gb of their individual quota but has full access to all items in the folder.
While DropBox plans begin with a free 2Gb of space, Copy is offering 15Gb now plus 5Gb for each referral. To sign up using my referral code, click here - giving both you and I an additional 5Gb. That's 20Gb to start with!
To make the best use of Dropbox or Copy, I strongly recommend making it your de-facto 'Documents' folder. Don't save files to different places on your computer and later drag-and-drop to your cloud folder; instead set in place the practice of saving all your work into the cloud folder from the beginning. Make it your working storage. This gives you the benefits of backups, version history and more from the onset.
Meanwhile, Box http://www.box.com has announced a new Personal Pro plan which offers 100Gb of storage and the ability to upload files up to 5Gb in size for $10 per month. This contrasts with the free plan limit of 250Mb per file which, unfortunately for Box, is more restrictive than its major competitor's free plans.