Multi-room music
Play music across rooms from the devices you already own. A phone, tablet, laptop, or old computer with a browser can become another room. How multi-room audio sync works.
Works with
Viola, the AI voice assistant for Windows
Switch your assistant.
Keep everything else.
Music in every room, calls made for you, calendar and browser tasks through the apps you already use.
A day with Viola
Viola, put on The Weeknd everywhere
Music in every room
One assistant, the whole day
Ask out loud. Viola handles the things you would rather not stop for.
Calendar and task planning
Ask Viola to find time on your calendar, move a meeting, compare options in the browser, or prepare a follow-up for your approval.
Phone calls Viola makes for you
Viola places calls on your behalf, works through phone trees, keeps a record when enabled, and hands you the summary. US numbers only. How Viola’s phone calls work.
Browser tasks
Viola can open sites, compare options, fill forms, and stop for your approval at checkout or other high-risk steps.
Works with your stack
Use YouTube and Google music paths, local music, Google Calendar, and Home Assistant instead of rebuilding your life around a new ecosystem.
Local-first and private by default
Voice transcription, memory, API keys, payment cards, and browser profiles stay on your device by default. Cloud features are opt-in or account-backed.
Free to start. No card, no account required to install.
Multi-room music
One song, every room, actually in sync
Tell Viola to play something everywhere and it streams to every screen in the house at once. The hub on your PC, a tablet in the kitchen, an old laptop in the bedroom. Any device with a browser becomes another room, playing the same track together.
Calendar and planning
Your real day, right on the home screen
Connect Google Calendar and Viola keeps today's schedule in view. Ask what needs you today, move a meeting to a better time, or have it prepare a follow-up and wait for your approval before anything goes out.
Smart home
Works with the smart home you already have
Point Viola at your Home Assistant and it can run your lights, switches, and scenes by voice. You connect it once in Settings, and on-network device discovery stays opt-in, running only when you ask for it.
Outbound calls
Viola gets on the phone and talks like a person
Give Viola a task and it actually calls: it greets the receptionist, answers their questions, works through the menu, and books what you asked for. You can read the live transcript, queue the next call, or take over with one tap.
You stay in control
It never spends a cent without asking
Before it commits to a time, a price, or a payment, Viola stops and checks with you, in plain language, right in the moment. Approve it, tweak it, or take the call over yourself. Nothing financial happens behind your back.
Switching from Siri, Alexa, or Google Assistant?
2026 is the year the big assistants change under you: Google Assistant is folding into Gemini, Siri’s AI overhaul keeps slipping, and Alexa+ is paid for non-Prime users ($19.99/mo, free with Prime). Viola is an alternative you can install today, and switching does not cost you your music, calendar, smart home, or browser.
See Viola vs. Alexa, Google, and Siri · Why people are switching to Viola
Real moments
The kinds of things people actually say to Viola.
Viola, play jazz everywhere
Multi-room morning
Viola, check my calendar and tell me what needs me today
Connect Google Calendar in Settings
Viola, move my 2pm to Thursday and prepare the follow-up
Calendar and browser tasks
Viola, call the restaurant and ask if they have a table for two at 7
Outbound phone
Viola, dim the living room and put the kettle on
Via your Home Assistant
Viola, compare three restaurants for Saturday at 7
Browser research
Runs on the hardware you already have
Windows hub
Browser rooms on phones, tablets, and laptops
Local files, Spotify, and YouTube or Google music
Home Assistant when you already use it
Built for Windows, built around what you already use
No ads. No forced ecosystem switch. Viola runs on your Windows PC and works with the services, accounts, and hardware you already chose.
Frequently asked questions
Is Google Assistant going away in 2026?
Google has said Gemini is replacing Google Assistant on Android in 2026, so many people are being moved off the assistant they chose. If you want an alternative that is not tied to one big ecosystem, Viola is a voice assistant you can install on your Windows PC today.
Is Siri going away in 2026?
Apple has repeatedly delayed Siri’s big AI overhaul. Siri is not disappearing, but if you are tired of waiting, Viola is a Siri alternative for your Windows PC that does tasks today: music, calendar, phone calls, and browser work.
Is there an AI that can make phone calls for me?
Yes. Viola places real outbound phone calls to US numbers: it talks to the person who answers, works through phone tree menus, and brings you back the result, with a transcript when recording is enabled. How Viola’s phone calls work.
Does Viola work on Mac or on my phone?
Viola is a Windows desktop app today (Windows 10 or 11, 64-bit). If you are on another device, leave your email on the download page and we will send one email the day Viola reaches your platform.
Is Viola private? Does it send my data to the cloud?
Viola is local-first by default: voice transcription, memory, API keys, payment cards, and browser profiles stay on your device. Cloud features are opt-in or account-backed, and the Privacy Ledger documents exactly what leaves your machine.
Is Viola free?
Yes. Viola is free to use with a monthly managed usage allowance, and it stays free if you bring your own API key or a local model. Pro ($12/month) and Max ($20/month) add larger allowances; every plan has the same features. See Free, Pro, and Max plans.