I was just playing around, and thought this might be useful to others as well. So I signed up to GitHub. Feelback (didn't know how else to call it, I know it's a bit cringey) makes it fairly easy to get vibrations and haptic feedback, assuming your device has a haptic engine built in.
The oldest supported iPhone is the 6s (mine), and it only works with a little workaround. I don't know which iPads work (my iPad mini 2 is just way too old), or if they have a haptic engine at all.
Does anyone know if there are other SystemSounds than these? Because even this list doesn't include the ids for haptic feedback (1519, 1520, 1521) , so there may be more.