To really see and experience for yourself why Anova is the only viable solution for you, please take some time to check out our unrestricted 
Features » Suggestion for Questions
The primary objective of this feature is to increase user convenience and avoid entry of duplicate content on site. The software refers a few questions that are already uploaded into the software once users types in a few words of the question, and the software automatically suggests questions. The software also wipes out repetitive questions and increases the range of all the subjects covered with all the questions.
Once users identify the existence of question in the software, all they need to do is get back to the site to view appropriate answers. This feature eliminates entry of duplicate question on site, and gives Anova an extra edge over other answering scripts.
Req. Version: Anova, Anova Pro