Hi, I'm looking for a timer/alarm app that can be set to just one short vibration, rather than an alarm that keeps going and going until you turn it off. Even better would be the possibility to have several short alarms set at once, one at 30m and one at 1h for example, to know when half the hour has passed. Has anyone come across an AW app like this? I've searched all over, would be extremely grateful for any tips. Thanks!