Hi - after being unreliable for a while the Clock > Alarm function on my iPhone has completely given up. It's IOS15.5 on an iPhone 8. I've got 3 alarms: weekdays, weekends & a one-off. None of them have sounded in the last 4 days, & experimenting today with setting an alarm for 5mins in the future just results in the alarm going from "on" to "off" without making any sound. I've checked settings > sounds where the settings look fine. Is there a good simple accessible 3rd party alarm clock app? OR does anyone know a fix for the problems in the Clock app?