Just as the name says UNLIMITED. You are not limited by the number of contact form.
Can I change created forms?
Yes. You can change every part of your forms (id, class, tag, label, placeholder,..). Also you can add new box or change the old one.
Free template for your form
You have available five templates for free for your contact forms. And all what you need is to add a class in the row section. If you want to create own template you can do that in output/css/cfe-style.css
A regular license allows an item to be used in one project for either personal or commercial use by you or on behalf of a client. The item cannot be offered for resale either on its own or as part of a project. Distribution of source files is not permitted.
An extended license allows an item to be used in unlimited projects for either personal or commercial use. The item cannot be offered for resale "as-is". It is allowed to distribute/sublicense the source files as part of a larger project.