A-Volume Widget has been discontinued. Similar apps include Volume2, which is free. Other options are NoVolume, Background Music, Sound Control and SoundFixer. In total there are five Volume Control Tools like A-Volume Widget for Mac, Windows and Android.
Volume2 is an advanced Windows audio mixer, a complete replacement for the standard Volume Control. This application lets you easily change the sound volume just by rotating the mouse wheel or by using keyboard hot keys or just mouse move on screen border.
Russia
Upgrade your phone's volume control with NoVolume, the only volume slider with haptics, inspired by Nothing OS.
With this custom slider, enhance even more your phone experience!
Czechia
EU
Background Music is a macOS audio utility that can automatically pause your music, set individual apps' volumes, and record system audio.
United States
Sound Control adds per-app volume and EQ controls to your Mac apps. Route your apps to different audio devices. Add volume controls to your devices.
United States
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud.
