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.
We do not charge anything when using the payment integrations. However, please do take note of the taxes and additional fees of the payment processor you are using.
You can check this guide on how to add a payment field in your form: https://www.jotform.com/help/165-Setting-Up-Your-First-Order-Form
You can also check this link about the list of payment processors that we have integration with: https://www.jotform.com/help/323-Mastering-Payment-Form-Integrations-with-JotForm
Please note that JotForm does not store the payment information in our servers, we simply pass the data via API and the transaction is completed in the payment processors gateway.
If the payment processor that you want to use is not listed in our payment integrations, then we can forward it as a feature request to our developers, however, as mentioned on the other thread, the implementation of it depends on the current workload of the developers and the feasibility of it.
I hope that helps.