What do I mean by this? I no longer want to adjust my volume every time I use a different app.
Currently, phones have a global volume level, but it sometimes sucks that you always have to adjust the volume for each app you are using. (Increasing volume when switching to Instagram and decreasing volume when switching to X.com).
So I was thinking of an idea. How about each app independently has its own volume level that you can adjust from. Then when you go to each app, it auto-adjusts the volume? Just a suggestion.