How To Change Alarm Sound On IPhone, Follow some steps: Open the "Clock" app on your iPhone. It's typically located on your home screen, Tap the "Alarm" tab at the bottom of the screen, Find the alarm for which you want to change the sound and tap the "Edit" button in the upper-left corner of the screen. This will display your existing alarms, Tap the alarm you wish to modify. It will open the alarm settings, In the alarm settings, tap the "Sound" option. It is located below the time settings for the alarm, You'll see a list of available alarm sounds. You can browse through the list or use the search bar at the top to find a specific sound, Tap on the sound you want to use as your new alarm tone. You can listen to the sound by tapping on the play button next to it, Once you've selected the desired sound, tap the "Back" button in the upper-left corner to save your changes, Finally, tap the "Save" button in the upper-right corner to update your alarm with the new sound.