After purchasing the app, I see it doesn't really work in the background on iPhone or iPad as it states it would. That means the app must remain of the screen and device must remain unlocked while the scary sounds play. It was almost perfect for my halloween party tonight so being I already paid for it, I make due with it. App Support brings you to a broken link.
Also, can you please remove menu "click" sounds. They play over the sounds so you hear clicks when you want to add sounds and remove them. These are the only flaws in an otherwise perfect app. I will update this review if fixed.