You can see your alarms in the Alarm tab You can turn an alarm on or off at any time by clicking or tapping the switch located to its right. Use the switch to turn alarms on or off The alarms you create are displayed in the Alarm tab of the Alarms & Clock app. Set the volume on your iPhone. You can also go to Settings > Sounds & Haptics and drag the slider under Ringers And Alerts. To delete an alarm, choose the Delete (Trash) icon, right. If your alarm only vibrates, make sure that your alarm sound isn't set to None. The alarm doesn’t work when you turn off the phone. Turning off an alarm doesn’t delete the alarm. If your alarm volume is too low or too loud, press the volume button up or down to adjust it. Open the Clock app, tap the Alarm tab, then tap Edit. For some Clock apps, you have to long-press the alarm and choose the Delete Alarm command, or touch the red X to remove it.