Random Alarm Clock

[Novice18]

I'm looking for an app on an iPhone that is a random alarm clock that can be set to keep trying at regular intervals until it goes off once. The only app I know of on an iPhone is the clock. I understand how to set an alarm with that. I want something that can be programmed to have a, say, 1 in 60 chance of going off each minute until it does, so that the average time it takes to go off is 1 hour, with wide ranging fluctuation, just like trying to hit a jackpot on a video poker machine. I found an app called "Random Alarm Clock" that allows me to do it once, manually, so that it either goes off or not at one particular time, but I want something that will automatically keep trying until it goes off. Programming a robot to play video poker until, if he hit a royal flush, a sound would go off would accomplish what I want.