SoundDeck: App Volume Control

Give supported apps their own media-volume target. SoundDeck uses Shizuku to help you balance a music player, game or browser from one place, with saved mixes and a floating panel.

SHIZUKU REQUIRED
Requires Android 13 or later and a running, authorized Shizuku service, installed separately. Supported players depend on your phone, Android version and app. SoundDeck cannot make every app play alongside another app or override Android audio focus.

YOUR APPS, YOUR BALANCE
See supported media and game players grouped by app. Set a 0–100% volume target, mute an app or reset its adjustment. Add apps ahead of time and keep their levels on your phone. Saved targets are applied to newly discovered supported players while your mixer is running.

SAVED MIXES
Save app levels in Gaming, Study and Night preset slots, then apply a mix in a tap. Create extra custom presets with optional Plus access. Included preset slots start empty so you choose the apps and levels that belong in each mix.

AUTOMATIC CONNECTION PROFILES
Assign a saved preset to phone/no headphones, wired or USB audio, and Bluetooth audio. Enable automatic profiles and start the mixer. A settled connection change can load the preset you chose; manual tweaks stay in place until a later profile change. Wired/USB takes priority when both wired and Bluetooth audio are connected.

Profiles follow connected device categories. They do not identify a particular headset, verify the current playback route or force Android to switch outputs.

A PANEL WITHIN REACH
Allow display-over-other-apps access to open the compact floating mixer. Open it from the app, ongoing notification or Quick Settings tile. An optional accessibility shortcut can open it when you press a volume button; normal system volume adjustment still works. The shortcut observes volume keys and does not read screen content.

MAKE IT YOURS
Choose Light, Dark or Follow system. Panel Studio previews Classic, Mint, Lavender and Paper palettes, compact or roomy spacing, and left or right placement. The standard Classic panel is free.

OPTIONAL PLUS PASS
Watch a rewarded ad to unlock the displayed Plus features for the duration shown in the app. Available features can include automatic profiles, custom presets and panel styling. When access expires, automatic switches pause without reverting the mix already applied. Saved choices remain. Basic mixing, mute/reset, included preset slots and the standard panel remain free. SoundDeck contains ads; there are no ads inside the floating mixer.

CLEAR CONTROLS
Start the mixer yourself and stop it from the app, panel or ongoing notification. Stop attempts to reset the players SoundDeck adjusted. Calls, alarms, notification sounds, system audio and other Android users are excluded.

IMPORTANT LIMITS
Targets scale supported app players; your system media volume and the app's own controls still apply. Android does not provide a readable per-player multiplier or reliable audible success acknowledgement. A requested level is not proof of an audible change. Other audio tools may overwrite the same setting. Force-killing Shizuku or its helper can prevent cleanup; restarting affected playback may be needed. Restart Shizuku and the mixer after rebooting.

No account is required. App levels, presets and profile choices stay local. SoundDeck does not record audio, provide an equalizer, amplify above normal levels or route each app to a different device.