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.
This is correct.
FB app actually does not support embedding. So the form could not be embedded on an FB app.
To view the form added on your FB page, you must use a browser and not the Facebook app.
Hope this clarifies the matter. Let us know if you need further assistance.