Thanks for the replies. Knowing it isn’t going to cost me a new iPad screen I’ve experimented. The duct tape isn’t detected as a touch although touches can be detected though it. I’ve tried a few layers of folded post-it under the tape but pressing it is still recognised by the screen.
Knowing I can use the tape to hold something, what suitably thin things are non-capacitive?
edit: the person training me in how to admin the app spoke to the developers over a year ago and nothing’s been done despite releasing a major (v3.0 to 4.0) update. We use 3.8x. v4 is prohibitively expensive and doesn’t have that improvement. TBH, v3 was too!
edit II:
Maybe one of those double sided sponge sticky things
Genius!
Obviously, being a teacher, I have a collection of stationary to put WH Smiths to shame. It works perfectly and doesn’t make the screen think it’s being touched either.