It's an add-on service for prime members not a trial. I'm not sure if there is an option for non-prime members. Edit: looks like it is 11.99 for non-prime mem

It's an add-on service for prime members not a trial. I'm not sure if there is an option for non-prime members. Edit: looks like it is 11.99 for non-prime members. Also the unlimited everything option looks pretty cool. Really trumps dropbox and google drive.