invisible-captcha

Couldn't be better - the author has thought of everything, and setup is a breeze - also well designed. Love the captcha badge -- what an attractive way to deal with Google's requirement that you add terms and privacy policy links. Works as intended on login form and contact form 7. Many thanks.

and still works with 4.4.x

Adding this review to say thanks for creating such a simple and perfect little plugin. Works quietly behind the scenes and eliminates spam. Love this plugin.