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 would recommend trying the iFrame embed method, rather than your current embed method:
Replace your current embed code with the iFrame embed code. This usually solves issues with embedded forms not showing up on mobile.
If it does not, let us know the URL of your site and we will be happy to have another look.