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.
I'm not sure if I understand your query correctly. Do you mean to have a sum of the values of matrix fields from different forms? If so, unfortunately it is not possible to perform calculations from different form submissions. However, you may find our combine submissions app useful in combining submissions from different forms with similar fields to generate a report.
If you are referring to something different, please let us know. We will be happy to help.