Every app.
Its own volume.
macOS gives you one volume slider for everything. mixr gives one to each app — silence the noisy one, keep the music, and your microphone never switches behind your back.
Founding users get first beta access and launch-week pricing. No spam — a handful of emails, ever.
Mute the loud app, keep the music FREE
A slider and mute for every app playing audio, with live meters so you can see who's making noise. That one blaring tab? Silence its browser without touching anything else. Set Zoom to 40% once — it stays there.
macOS stops switching your mic FREE
Rank your microphones once. mixr always picks the best one that's actually connected — AirPods can't hijack input, and if your mic dies mid-call, the fallback is yours, not random.
Music ducks for calls, then comes back
When any mic goes live, mixr lowers your music — gently on headphones, fully on speakers — and restores it the moment you hang up. Rules, profiles, and per-app routing for the setups that get weird.
No drivers. No virtual devices. Nothing to break.
mixr uses macOS's modern audio APIs — one standard permission, native Liquid Glass UI, ~0% CPU at idle. Quit it anytime and every app instantly returns to normal. Every file it writes and every endpoint it talks to will be published.