Hello again,
I don’t have an iPad so can’t advise as to what screen capture software might be available for it, sorry.

However if you have the desktop version of ArtRage4 on your laptop then my opening gambit would be to first try with the Mac’s built-in screen capture first.
You could export the AR script from the iPad as you did before, only this time run the script in AR4 on your Mac and use QuickTime to record the playback.
(You will need a version of QuickTime that’s after Quicktime 7)

You’ll find QuickTime X or QuickTime Player (depending on your Mac OSX version) in the Applications folder on the Macbook, launch it and then go to File > New Screen Recording.
A small black window will open with a record button on it, click it to start. Next to this button is a faint grey chevron, clicking on this before recording will give you some limited recording options depending on what version of Mac OSX you have. (Apple can’t help but keep monkeying around with this record feature it would seem!)
Once you’ve got the hang of it, start a new recording and then start the script playback in AR4.
When done, stop the recording and Save or Export the recording. It will be as a .mov file type which you can then give to your editor to polish up for you.