Bluetooth Volume Manager — Open Source Media Player App

GPL-3.0-only

Bluetooth Volume Manager remembers volume levels for each of your Bluetooth devices and reacts when they connect or disconnect.

Features: * Set music, call, ringtone, and notification volumes per device
* Auto-send media commands like Play or Next
* Launch apps on connect
* Keep screen awake
* Lock volume levels
* Restore volume after disconnect

No ads, no tracking. Open-source.
Some extras require a paid upgrade to support development.

Note: This app can't boost volume or override system volume limits.

Permissions: * Internet – for optional bug reports
* Bluetooth – to detect device connections
* Audio settings – to change volume
* Boot – to restore settings after reboot
* Wake lock – to keep screen awake or fix Samsung bugs
* System alert window – to auto-launch apps (Android 10 only)