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.
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So, you would like to create a form with different prices for products depending on the quantity of products that the form users select. Is that correct? If so, let me inform you that our form builder does not have such function that allows you to change the prices depending our users choice.
However, there's a workaround you could apply. You need to apply conditions and need to create a multiple payment form, please find the explanation at this thread: I would like to build a form with different prices
I hope this helps. Please let us know if you need further assistance with tjhis or kindly open a new thread to post unrelated inquiries.