Don't use this. I once tried it and it changed the UUID of the Linux partition without any warning. Grub was unable to pick up the partition and boot, so I was stuck at grub rescue.
God knows what other bugs their software has.
contact Sales for a quote. I guess the price depends on how many files you plan on storing?
$20 if you're a home user?
That's the business page, the home user page shows €19,95 for me.