How do i add an icon for my web form (when it's saved to iOS homescreen)

I understand that you want to place an icon/shortcut to your JotForm on your iPhone home screen. If so, the following link with the instructions might help.

http://www.wikihow.com/Create-a-Website-Shortcut-on-Your-iOS-Home-Screen

Hope this information helps! If you are referring to something different or need any further assistance, please let us know. We will be happy to assist.