It may sound simple but in fact its a powerful anti-bot captcha with over 3000 possible results. zCaptcha also comes with the property of anti-OCR (Optical character recognition). zCaptcha also has many different soft effects that users will enjoy using.
The zCaptcha is can be fully customized to fit your needs. You can change just about anything. You can add new images/icons without any hassle. The description for the images is a single variable which can be written in any language. You can also manage where your users will get redirected to if they input the correct answer.
If you would like to test a demo click Here