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 your form is setup.
You can setup an order form by following this guide: http://www.jotform.com/help/165-Setting-Up-Your-First-Order-Form
Stripe is one of our payment tools that you can integrate on your form. If you wish to have a custom price depending on the calculations on a text box or options in your other fields. You can do that by following the guides below:
To perform a calculation, you can follow this link: http://www.jotform.com/help/259-How-to-perform-calculation-in-the-form
If you are using drop downs, radio buttons and check boxes, you can assign calculation value on them by following the steps here: http://www.jotform.com/help/301-How-to-Assign-Calculation-Value
After having a final calculation for your custom price, you can pass it to your payment integration by following this guide: http://www.jotform.com/help/275-How-to-pass-a-calculation-to-a-payment-field
I hope that helps. If you have not yet registered an account, please do so. That will allow you to manage your forms and take advantage our features and services fully.