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.
Yes it is indeed possible by setting up the paid account as main and then setting up the free accounts as sub-user accounts.
Here is a guide that will help you to set up sub-user accounts and share forms with them: https://www.jotform.com/help/232-How-to-share-forms-with-a-sub-account-user
If you have any question, please let us know.