Has anyone used reCaptcha on their iPhone application? I am trying to figure out how to embed it in my App...
use this http://iphonesdksnippets.com/post/2009/05/05/Add-text-to-image-%28UIImage%29.aspx find a nice background image for you app, and just randomly generate some number and/or text. not exactly a captcha, but it can work out. Hope it helps!