One of the things I’ve wished Apple would build into iOS and iPadOS for the longest time is the ability to control individual apps’ volume levels independently of one another. By that, I mean that I might want a higher volume level saved for my Music app as opposed to my Phone app, or perhaps a higher volume for my YouTube app saved as opposed to my favorite game apps.
While this isn’t currently a feature on stock handsets, the good news for those seeking functionality like what was described above is that a newly released and free jailbreak tweak called VolumeMixer by iOS developer Brend0n makes the concept into a very real feature.