What are some alternatives?
When comparing Gravity Forms and Wufoo, you can also consider the following products
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!
Yoast Plugins - Yoast offers plugins to improve SEO and optimize web sites and blogs.
Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
Jackmail - A newsletter plugin for Wordpress.
Google Forms - Simple web forms from Google.
Pareto Security - Pareto Security is a Wordpress Security plugin