Volume for each app, HDMI volume, an equalizer, monitor brightness, a real window switcher, clipboard history. You can find each of these somewhere, but who wants to install, trust and set up a dozen separate utilities? Tuno brings them together in one small, native menu bar app with one settings window. It's free, it's open source, nothing you hear or copy ever leaves your Mac, and every build is signed and notarized by Apple.