I was at a friends home unexpectedly another night and she was asleep w/the fan that we had previously been borrowing put away somewhere else, so I foun & downloaded BedtimeFan. It seemed to work fine to help me sleep at first, yay, but I woke up a few hours later to use the restroom and thought I heard low piano key notes like the first piano note in the scary movie ‘Halloween’ Lol and then following in soft higher notes, chanting sounds, like witches or satan worshippers saying something like “showpahhhhhhhhhh”...Like others have said in these reviews, I thought I was crazy until I came back from restroom and sure enough it was looping, repeating over and over while I tried to fall asleep...I really needed to sleep right away for a couple more hours before a long driving trip and didn’t wanna waste time looking for another, more pure, fan app, so left it on & I prayed strongly Lol. I’ll delete it, I didn’t sleep well second time around worrying in my dreams if it was subliminal devil chanting, and had a very hard time staying awake afterward to drive the 10 hrs home with my son, we had to stop several times to rest.