Pictcha is a very unique & secure CAPTCHA.
Pictcha is a protection in a form of an image retrieved from UTYP engine, which can be embedded inside web forms, and which will filter out spams. When someone uses UTYP Pictcha, the UTYP engine learns and gets more accurate.
Click here to see Pictcha in action.
Pictcha generates image based CAPTCHAs which require the user to describe a random image. Pictcha is more secure than traditional text based CAPTCHAs which can be read via OCR programs.
Please let me know what you think about the plugin and any suggestions you may have. If you use the plugin please rate it. If it doesn't work for you do let me know so I can fix it.