一锤定音 - 音量控制大师 app for iPhone and iPad

1 Intuitively and conveniently set various volumes of the mobile phone, including ringtone volume, media volume, call volume, siri voice volume, etc.
2 Flexible scene mode. Realize one-key mute, switch volume regularly, set default volume when opening App, switch volume at the same time when switching focus mode according to habits, etc.

We only have one volume key, but we have to control several volumes,
How to adjust the call volume when not on the phone;
How to adjust ringtone and media volume conveniently;
When opening an app, can we automatically mute it;
Can we set a default volume for each App;
When the focus mode can also have its own volume configuration, what kind of sparks will there be;
...

the answer is here

A convenient volume control software, you can configure a variety of volume strategies, with shortcuts and focus mode to achieve one-button mute, mute to open the App, smart volume, etc.

How many times the first action of opening the game is to press the volume button all the time, I don’t want others to hear the sound of your game
How many times have you turned on the video software but forgot to mute the sound, which shocked the people around you
How many times have you missed an important call in order not to disturb others?