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.
If you're referring to the Payment Processors you can use on your form (e.g. Stripe, Paypal, etc.) then there's no added charge for those transactions.
The only thing you'd pay for with JotForm are the subscription plans and that will only happen if you decide to upgrade.
In case we misunderstood your question, just get back to us with a bit more info and a clearer description of what you're trying to do so we can better assist you.