The free plugin permits you to have 2 input fields (and a subscribe button).
PopupAlly Pro allows you to have as many input fields as you need to collect visitor information.
PopupAlly Pro also includes email support and we’ll be happy to help you out with any further questions you may have. We have a 30-day money back guarantee on the plugin, so feel free to take it for a risk-free try. If you don’t like it for any reason, just let us know and we will refund your purchase.
Here’s the link for more info: