Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
Event Espresso - Event Espresso offers event registration and ticketing management plugin for WordPress.
Jotform - Free Online Form Builder & Form Creator
MemberMouse - MemberMouse is an easy to use WordPress membership plugin that allows you to accept payments, manage customers, deliver premium content in a password protected
FORM.com - FORM.com is an enterprise mobile forms software and solutions perfect for optimizing online and offline inspection, audit, compliance operations and more.
Yoast - Yoast offers plugins to improve SEO and optimize web sites and blogs.