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mactooloud
The per-app volume mixer macOS forgot to ship
macOS gives you one volume knob for your whole Mac. mactooloud gives every app its own. Pull Chrome to 20% without touching Spotify. Auto-Duck fades music the moment Zoom or Slack grabs the mic, then restores it when you hang up. Mystery Sound Finder catches whatever is making that noise, even in another Space. Focus blocks mute everything but your one lo-fi app. Native menu-bar app - no audio driver, no kernel extension, no virtual device. macOS 14.4+, Universal, 7-day free trial.
I built mactooloud because of one specific moment that kept happening:
a Zoom call starts while Spotify is at 100%, and I'm scrambling to find
the tab, find the app, turn it down — then forgetting to turn it back up.
macOS gives you exactly one volume slider for your entire Mac. That felt
like an oversight worth fixing.
mactooloud is a menu-bar app that gives every running app its own slider,
plus a few things I now use daily:
🎚 Auto-Duck — the second Zoom, Slack or Discord touches the mic, music
fades to 10% and comes back when you hang up
🔎 Mystery Sound Finder — a live list of every app touching your speakers,
including the one hiding in another Space
⏱ Focus blocks — a pomodoro that mutes everything except the one app you
want playing
💼 Profiles — save a mix and bind it to a macOS Focus mode
One technical note I'm proud of: it uses the CoreAudio Process Tap API
Apple shipped in macOS 14.4, so there's no audio driver, no kernel
extension and no virtual output device to install. Most per-app audio
tools on macOS have historically needed one. The tradeoff is it requires
macOS 14.4 or later. Universal binary, Apple Silicon and Intel.
Pricing: 7-day free trial, no card. Then $4.99/mo, $39/yr, or $90 once
for a lifetime licence on one Mac.
The thing I'd most like feedback on is the Auto-Duck tuning — I landed on
10% volume, a 175ms fade and a 1.5s restore delay, but that's calibrated
against my own setup and my own meetings. If it feels wrong on yours I
want to know.
Happy to answer anything in the comments 🙏
About mactooloud on Product Hunt
“The per-app volume mixer macOS forgot to ship”
mactooloud was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #15 on the daily leaderboard. macOS gives you one volume knob for your whole Mac. mactooloud gives every app its own. Pull Chrome to 20% without touching Spotify. Auto-Duck fades music the moment Zoom or Slack grabs the mic, then restores it when you hang up. Mystery Sound Finder catches whatever is making that noise, even in another Space. Focus blocks mute everything but your one lo-fi app. Native menu-bar app - no audio driver, no kernel extension, no virtual device. macOS 14.4+, Universal, 7-day free trial.
On the analytics side, mactooloud competes within Mac, Menu Bar Apps and Audio — topics that collectively have 118.1k followers on Product Hunt. The dashboard above tracks how mactooloud performed against the three products that launched closest to it on the same day.
Who hunted mactooloud?
mactooloud was hunted by Krishna Kant Singh. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of mactooloud including community comment highlights and product details, visit the product overview.
Krishna Kant Singh
Hey Product Hunt 👋
I built mactooloud because of one specific moment that kept happening:
a Zoom call starts while Spotify is at 100%, and I'm scrambling to find
the tab, find the app, turn it down — then forgetting to turn it back up.
macOS gives you exactly one volume slider for your entire Mac. That felt
like an oversight worth fixing.
mactooloud is a menu-bar app that gives every running app its own slider,
plus a few things I now use daily:
🎚 Auto-Duck — the second Zoom, Slack or Discord touches the mic, music
fades to 10% and comes back when you hang up
🔎 Mystery Sound Finder — a live list of every app touching your speakers,
including the one hiding in another Space
⏱ Focus blocks — a pomodoro that mutes everything except the one app you
want playing
💼 Profiles — save a mix and bind it to a macOS Focus mode
One technical note I'm proud of: it uses the CoreAudio Process Tap API
Apple shipped in macOS 14.4, so there's no audio driver, no kernel
extension and no virtual output device to install. Most per-app audio
tools on macOS have historically needed one. The tradeoff is it requires
macOS 14.4 or later. Universal binary, Apple Silicon and Intel.
Pricing: 7-day free trial, no card. Then $4.99/mo, $39/yr, or $90 once
for a lifetime licence on one Mac.
The thing I'd most like feedback on is the Auto-Duck tuning — I landed on
10% volume, a 175ms fade and a 1.5s restore delay, but that's calibrated
against my own setup and my own meetings. If it feels wrong on yours I
want to know.
Happy to answer anything in the comments 🙏