How to add custom notification sounds for each app on your Android phone

You can have your phone or tablet make a brief noise, chime, or vibration whenever an app, call, or message notification ...
Lifehacker

Android 15’s ‘Adaptive Vibrations’ Change Based on Your Environment

For phone notifications, somewhere between beeps and silence there are vibrations: A way of getting incoming alerts that you'll notice, but which no one around you will (at least in theory—if your ...