I've been playing with the app for a few weeks now and watching the angles the ball will take.

Unfortunately it's quite inaccurate compared to reality.
It comes off to me as if a whoever designed the app is originally a pool player which is fine but
the rails on the carom table play like rails on a pool table.
And the slide of the balls slide like pool balls.

So I was using the app to discover new angles and I think maybe now it's not helping with that.