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.
Make sure you are logged in first to your account here https://www.jotform.com/login
You can cancel the subscription by going to your Account My Billing Page or use this shortcut link
Then Cancel/Switch the subscription plan to Starter Plan
Just follow the next instructions and you should be able to cancel your paid subscription.
Hope this help. Inform us if you encounter difficulty cancelling.