Computational Demonology is the science of using math and algorithms to interact with the fundamental fabric of reality, particularly the borders between universes.
This app runs particular algorithms which a budding paranormal field agent might find useful.
This app is inspired by The Laundry Files, but doesn't implement anything from that (classified) archive.
Update 2017-04-05: If you downloaded the app from the Google Play Store from "A-Z Man": That is NOT me. My app contains no ads. That person added them and is not complying with the GPL by not releasing the source.