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.
The difference is that secure makes the jotform data be passed from jotform to our servers over encrypted channel, while regular jotform sends the data as it is usually sent over the internet - without any encryption.
The encrypted, or SSL / secure version is best if you will be collecting confidential data on your jotforms and want to make sure that the data is secure.
Do let us know if you have any further questions.