Gravity Forms is a premium plugin for form management. Essentially, it allows you to create forms and insert them in your pages, posts, or sidebar. You can have a variety of form fields, from text boxes to drop-downs to upload buttons. The results are stored in WordPress, and optionally mailed to you and/or the email address listed in the form.
We are pleased to include the Gravity Forms plugin on our platform, at no additional cost. Normally, it costs $39/year to use this plugin on one website, but our developer license allows us to provide this to all of our customers.