How can I mute my iPhone while maintaining the alarm? Utilize the silence mode on your phone. Rather from using the volume buttons throughout the day to silence your phone, just use the quiet switch (above the volume buttons) to turn off the ringing. This will silence your phone’s ringer yet maintain your alarm.
How can I stop all sounds except my alarm? Swipe down from the top of the screen and press the choice that corresponds to your current state: Alarms only, Priority only, or Total quiet. Tap Turn off now using the volume down button.