I use alarms a lot because they work even if you have you phone in silent mode. When needed I’ll also use timers because it’s a lot easier than having to work out the time 70 minutes from now and setting an alarm.
The problem is, the iOS 11 Alarm and Timer buttons are reversed for functionality. When the timer goes off I end up repeating it because the Repeat button is where the alarm Stop button is.
I know, I can go in and cancel a timer but it just seems odd to me.