I searched for IPAD on the JMP website and only found links that no longer exist. I am guessing the app is no longer available.
On the other hand, I regularly run JMP Pro on a tablet, but it is a MicroSoft Surface Pro tablet running Windows 11.
Another option would be to place your Graph Builder graphs and other JMP output on the public JMP Live site, or have your company license JMP Live and then place your output on it. Then any IPad can access the output through a browser.
Jim