title: Alternative to Recaptcha
body: <p>Ours is a java web application on struts2 framework. Currently for contact us form and download reports form we are using Recaptcha. We have to refresh the captcha at least 4-5 times to get the readable words. We are looking for some simple alternative to Recaptcha which prevents getting Spam requests. 
  Guys can you suggest me a replacement for Recaptcha.</p>