No name needed. For adults in this class only. We keep your answers, the time, and a random number stored on this phone (clearing this site's data resets it). Like every website, our server's log notes each visit's IP address and browser; that log is deleted within 7 days. Votes are deleted once the class summary is made. Questionnaire answers carry no name or phone number and are deleted within 90 days of the class. Questions: ask CoLLearn.