What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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.
I checked the status of your account but as it seems, you are already using the newest version of the form builder.
In any case, you may check your Account's Settings page and you will see there the selected item for the Form Builder whether it uses Version 3 or Version 4:
If you have other questions, please let us know.