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.
You can actually limit the number of submissions. Your form will be disabled or turned off if the limit was reached. In this way, no one can purchase a new one. Please refer to this guide: How to Limit Submissions in a Form
Hope this help. Thank you.