I know a dude who made about a million bucks off “ghost hunting” apps. Still doing it.
Would splice into the audio grunts and groans and scary shit to randomly trigger every once in awhile. Suckers eat it up.
Then he makes a hundred different accounts on ghost hunting forums and websites and casually mentions “wow! So and so app is amazing! It really talks to ghosts! Check out this footage!” Then has his other accounts be like “i was sceptical, but it really works!” To drum up business. Works like a charm.
His new one you talk into the mic, and it scrambles your own voice (backwards, effects, etc) until you get something that sounds vaguely like “I’m here” or “death” or some dumb shit, that he included in the program.
He paid some dude in India like $200 to make it.