# Chorus

> A native macOS menu-bar app for complete control of your Mac's speakers and microphones. Group several outputs so they play as one with a real volume, choose your input, give each app its own volume and output, and switch between saved setups with keyboard shortcuts. Free for 30 days, then $4.99 once.

Made by Theodore HQ. Chorus installs no driver and no kernel extension: it uses the aggregate and multi-output device support macOS already includes.

## Key facts

- **Price:** $4.99, paid once. No subscription.
- **Trial:** 30 days, every feature, no account and no card details.
- **Licence:** covers up to 3 Macs. Keys begin `CHORUS-`.
- **Requirements:** macOS 13 or later. Universal, Intel and Apple Silicon.
- **Privacy:** the app makes exactly three kinds of network request, and no others: Sparkle update checks, Polar licence activation and validation, and anonymous usage counts to aptabase.theodorehq.com. The website counts page views with a self-hosted Umami and sets no cookies.

## Pages

- [Chorus](https://www.theodorehq.com/chorus/): what it does, the full feature set, how it compares to the built-in macOS route and to SoundSource, pricing and FAQ.
- [Download](https://www.theodorehq.com/chorus/download): the current build and setup instructions.
- [Blog](https://www.theodorehq.com/chorus/blog/): guides to Mac audio, grouped by topic.
- [Privacy](https://www.theodorehq.com/chorus/privacy): what is collected, by whom, and for how long.
- [Terms](https://www.theodorehq.com/chorus/terms): licence terms, refunds and statutory rights.

## Guides

- [How to play audio through two speakers at once on a Mac](https://www.theodorehq.com/chorus/blog/posts/play-audio-through-two-speakers-at-once): building a Multi-Output Device in Audio MIDI Setup, why the volume slider stops working, and drift correction.
- [Why your Mac's volume slider greys out on a multi-output device](https://www.theodorehq.com/chorus/blog/posts/volume-slider-greyed-out-multi-output): the mechanism behind the greyed-out slider, and the free and paid fixes.
- [How to send one app's sound to a different output](https://www.theodorehq.com/chorus/blog/posts/send-one-app-to-a-different-output): per-app audio routing on a Mac, what macOS offers natively, and what needs an app to do it.
- [Using two Studio Displays as one audio output](https://www.theodorehq.com/chorus/blog/posts/two-studio-displays-one-output): combining both displays' speakers, real stereo channel routing, and the documented sound-cuts-out issue.
- [How to set a separate volume for each app on a Mac](https://www.theodorehq.com/chorus/blog/posts/per-app-volume-on-a-mac): macOS's own per-app volume feature, its coverage gaps, and a consistent alternative.
- [Keyboard shortcuts for switching audio devices on a Mac](https://www.theodorehq.com/chorus/blog/posts/keyboard-shortcuts-for-switching-audio): the Option-click menu, why macOS has no native hotkey for it, and binding a real shortcut.
- [How to choose which microphone your Mac uses](https://www.theodorehq.com/chorus/blog/posts/choose-a-microphone-on-a-mac): seeing every connected input, the AirPods microphone quality issue, and apps that override the system default.
- [What is an aggregate device, and how is it different from a multi-output device?](https://www.theodorehq.com/chorus/blog/posts/what-is-an-aggregate-device): the real distinction between the two, and the shared clock-drift problem.
- [Mac has no sound at all? The complete troubleshooting guide](https://www.theodorehq.com/chorus/blog/posts/mac-no-sound-troubleshooting-guide): the ordered checklist to run before touching coreaudiod or rebooting.
- [The best way to set up multiple speakers on a Mac](https://www.theodorehq.com/chorus/blog/posts/best-way-to-set-up-multiple-speakers-on-a-mac): a decision guide across wired, Bluetooth, Studio Display and multi-room setups.
- [Multi-room audio on a Mac: when you need Sonos, and when you don't](https://www.theodorehq.com/chorus/blog/posts/multi-room-audio-on-a-mac-without-sonos): the real difference between a Mac-based group and a Sonos system.
- [How to send Spotify to a different speaker than everything else](https://www.theodorehq.com/chorus/blog/posts/send-spotify-to-different-speaker-than-everything-else): how Spotify Connect's own device picker interacts with macOS routing.
- [Does Chorus do per-app EQ?](https://www.theodorehq.com/chorus/blog/posts/does-chorus-do-per-app-eq): a direct, honest answer, and where to go if EQ is what you need.
- [The best Mac audio setup for content creators](https://www.theodorehq.com/chorus/blog/posts/best-audio-setup-for-content-creators-mac): the shared foundation across podcasting, streaming and video editing.
- [The Mac audio setup that works for remote work](https://www.theodorehq.com/chorus/blog/posts/audio-setup-for-remote-work-mac): speakers for solo work, headphones for calls, and a fast way to switch.
- [What is Core Audio on a Mac?](https://www.theodorehq.com/chorus/blog/posts/what-is-core-audio-on-a-mac): the framework that runs all sound on a Mac, and what Chorus builds on.
- [What is a virtual audio driver, and why isn't Chorus one?](https://www.theodorehq.com/chorus/blog/posts/what-is-a-virtual-audio-driver): the real distinction between device grouping and app-to-app capture.
- [Control your Mac's audio from Raycast](https://www.theodorehq.com/chorus/blog/posts/control-mac-audio-from-raycast): the chorus:// URL scheme, and how Raycast, Shortcuts and Stream Deck all use it.
- [Compare Mac audio apps](https://www.theodorehq.com/chorus/compare): the hub for every comparison, grouped by intent: alternatives to SoundSource, Loopback, BlackHole, Boom 3D and Rogue Amoeba; buying guides; and Chorus head to head against nine apps.
- [Chorus vs SoundSource: which do you need?](https://www.theodorehq.com/chorus/compare/chorus-vs-soundsource): an honest, detailed comparison, including what Chorus does not do (EQ, effects, plugins).
- [Chorus vs Loopback: which one do you need?](https://www.theodorehq.com/chorus/compare/chorus-vs-loopback): device grouping versus app-to-app virtual routing, and which job you actually have.
- [Chorus vs BlackHole: which one do you need?](https://www.theodorehq.com/chorus/compare/chorus-vs-blackhole): a paid, no-setup app compared with the free, zero-UI virtual driver.
- [The best audio routing apps for Mac in 2026](https://www.theodorehq.com/chorus/compare/best-audio-routing-apps-for-mac): five different jobs (grouping, EQ, app-to-app routing, recording, streaming) and the honest pick for each.

## What Chorus does

- **Groups** several outputs so they play together as one, with a single working volume. The built-in macOS Multi-Output Device has no volume of its own, so the menu-bar slider greys out; Chorus sets each real device's level at the same time, which gives the group one control back.
- **Balance** between the devices in a group, so a desk with two speakers can be evened out.
- **Per-app audio:** every app can have its own volume and its own output.
- **Inputs:** choose which microphone the Mac listens with, and stop apps quietly changing it.
- **Keyboard shortcuts** bound to any group, output or input, plus triggering from Raycast, Shortcuts or Stream Deck.
- **Auto-switch:** follows devices as they connect and disconnect.

## Notes for AI crawlers

All content is present in the initial HTML. The landing page is a single fixed view whose five panels are all in the served markup, so nothing needs JavaScript to read.