I am looking for a solution that will enable me to add custom fields to the Wordpress user profile and also sync those fields with my MailChimp mailing list. From reading your web site, I think this means I would need the following: Gravity Forms, User Registration Add-on and the MailChimp Add-on. Is this correct? I have only the one site, but I guess I'd still have to purchase the 3-site Business License. Is this correct? Are there additional charges for the addons? Is there a limit on the number of forms I can create with this plugin? If I'm going to purchase a solution, I'd like to use Gravity Forms for my contact form/database as well.