An AI voice assistant for your Mac
Your Mac came with Siri, and Siri is good at Apple’s own apps. Viola is the other kind of assistant: one you install and hand real work to. A wake word, real phone calls, browser tasks, calendar, multi-room music, and smart home.
Why put a second assistant on a Mac
Siri has been on the Mac for years and it is genuinely good at what Apple wired it to do: a timer, a reminder, a quick answer, opening an app. What it does not do is take a multi-step job off your hands and come back with it finished. Apple’s larger AI upgrade for Siri has been delayed more than once, so that gap has stayed open longer than most people expected.
Viola is built for that gap. It installs as a normal Mac app, listens through the microphone you already have, and answers to a wake word. From there it is meant to do the work, not just talk about it: research in the browser, manage your calendar, control smart-home devices, play music in every room, and place a real phone call on your behalf.
A Mac is a good place for that, because the browser, the files, and the accounts you are already signed in to live right there. Viola works from your machine rather than from a locked-down phone shell, which is why it can carry a task from a spoken sentence to a finished result. It is one logged-in account per install, so the assistant learns your setup and your services without spreading your data across someone else’s cloud.
What Viola does on your Mac
| Capability | What it means on your Mac |
|---|---|
| Wake word and voice | Say the wake word and give your request in plain language. Wake detection and voice transcription run on the Mac by default. macOS asks for microphone permission the first time. |
| Real phone calls | Places outbound calls to US numbers, works the phone tree, waits on hold, and hands you a summary. How phone works. |
| Browser tasks | Navigates websites, reads pages, and fills forms, pausing for your approval before a checkout. |
| Calendar | Connect Google Calendar and combine scheduling with browser research and follow-up work. |
| Multi-room music | Play synced audio across rooms by opening a browser on a phone, tablet, laptop, or old computer. How it works. |
| Smart home | Controls devices through your Home Assistant setup when you already run one. |
Download Viola for Mac (free to start)
Signed, notarized, and local-first
Every Mac build is signed with our Apple Developer ID and notarized by Apple, and the notarization ticket is stapled to the download, so macOS opens it without a Gatekeeper warning. The download page publishes the file’s SHA-256 as well, so you can check the exact bytes with shasum -a 256 before you open anything.
Because Viola runs on your Mac, it can keep sensitive things on your Mac. Voice transcription, memory, API keys, OAuth tokens, payment cards, and browser profiles stay local by default, and on macOS the keys and cards are wrapped by your login Keychain. The Privacy Ledger documents what leaves the machine, capability by capability.
| Decision | Viola on a Mac |
|---|---|
| Cost | Free tier with a monthly managed usage allowance. Paid plans only raise the allowance; features are the same on every plan. See plans. |
| Hardware | No smart speaker needed; uses the mic and speakers you already have. |
| Requirements | Intel and Apple Silicon Macs. The current build is an Intel build, and Apple Silicon runs it through Rosetta 2. |
| Install | One signed download: unzip it, drag Viola into your Applications folder, open it. |
| Privacy | Local-first by default. Privacy Ledger and Network Flows explain what leaves the device. |
Frequently asked questions
Is there a good AI voice assistant for Mac?
Siri ships with macOS and handles quick single requests well. Viola is a different kind of assistant that you install yourself: it listens for a wake word and then does multi-step work, including real phone calls, browser tasks, calendar, multi-room music, and smart home through Home Assistant. See the head-to-head with Siri.
Does Viola run on Apple Silicon Macs?
Yes. Viola runs on Intel and Apple Silicon Macs. The current build is an Intel build, and Apple Silicon Macs run it through Rosetta 2, Apple’s built-in translation layer, which macOS installs the first time you open an app that needs it.
Will macOS block the Viola download?
No. Every Mac build is signed with our Apple Developer ID and notarized by Apple, and the notarization ticket is stapled to the file, so macOS opens it without a Gatekeeper warning. The download page also publishes the SHA-256 so you can verify the exact file with shasum -a 256 first.
What can Viola actually do on a Mac?
Play synced music across rooms, manage your Google Calendar, control smart home through Home Assistant, do browser research and form-filling with an approval step before checkout, and place real outbound phone calls to US numbers that it works and summarizes for you.
Is there a free AI assistant for Mac?
Yes. Viola is free to use on a Mac with a monthly managed usage allowance. Paid plans only raise the allowance; features are the same on every plan. See pricing.
Switch your assistant, keep everything else
If your day happens on a Mac, Viola sits alongside what is already there. It keeps your music, calendar, and smart home, adds real phone calls and browser work, and stays local-first by default.
Download Viola for Mac, see how it works, or read the head-to-head with Siri. On a PC instead? There is a Windows page too.