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 have tried to access my submission page on my mobile phone (android) and edit submission seems to be working fine. I have used Google Chrome app on my phone.
Here's a screenshot.
I have made the same process when using Desktop browsers. On MyForms page, I have selected the form, clicked "More" and select View Submission. Then, on the submission page, I have selected one of the submission and clicked Edit submission.
Let us know if this helps. If you have any further questions, please feel free to get back to us and we will be glad to help you. Thank you.