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.
It depends on how important is to keep the data away from advantageous sniffing hackers.
Usually, the form that should need SSL are those who require to enter payment information or anything that deals with money matters such as bank accounts, online stock market trading, online payments, and credit cards.
I see you have a payment form, so it's up to you if you want to be more reliable for you customers:
Just be aware that you have a free account, which allows you to receive up to 10 SSL monthly submissions. Once the limit is reached, no more secure or regular submission will be received on your account until the counter resets. So, you might consider to upgrade to a paid plan to allow you to receive more SSL submission: https://www.jotform.com/pricing
Let us know if you have more questions, we will be glad to assist you.