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.
Unique ID widget is used if you need to unique identify each form submission. Unique ID field will not be visible inside of your form but it will be show inside of your submissions or reports. You can also use it to count your submissions. More about Unique ID widget you can find inside of this article:
Hope this will help. Let us know if you need further assistance.