JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Radio buttons cannot be unchecked. I would either replace the field with a checkbox field or add an empty placeholder response to your radio button fields. A checkbox field would allow them to uncheck their choice and adding a blank option to the radio button would allow the users to select the blank option if they change their mind.
If you have any further questions, let us know and we will be happy to help.