By the way "free" means no annoying banner at the top of the plugin page. UPDATE, just to get rid of the annoying "upgrade" reminder i bought the pro version. Now a year later, unknown to me, i have to upgrade again, or live with all the popup reminders to extend my license. This guy has some nerve to use the WP platform to hijack the plugin page. Be warned. There are many truly free CAPTCHA plugins out-there.