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One Viola. Room to do more.

Start free. Choose your managed usage. Add more whenever you need it. Same voice assistant and features on every plan.

Viola is a voice assistant for Windows 10 and 11 or Mac that replaces Siri, Alexa, or Google Assistant while keeping your music, calendar, smart home, and browser. Every plan below is that same product.

Need help with setup or billing?

Email support@useviola.com and we’ll help.

Free

$0

forever. BYOK, local, or a set amount of included monthly usage.

  • ✓ Same feature set as paid plans
  • ✓ Multi-room music sync
  • ✓ Agentic tasks (calendar, browser, smart home)
  • ✓ Encrypted memory
  • ✓ Bring your own OpenAI, Anthropic, Google, or OpenAI-compatible key, or run a local LLM (Ollama, Windows today)
  • ✓ Light included usage to get started
  • ✓ Phone calls use the same allowance; no call-count cap is sold as a separate plan limit
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$20/month

Max · 2× Pro

Managed AI and phone usage, relative to Pro’s monthly allowance. Same features; different capacity.

Loading available capacity…

Existing presets: Pro $12/month · Max $20/month

Your price stays predictable.

You choose your recurring subscription capacity. Moving the slider never charges you. No automatic overages.

Review the difference.

Mid-cycle increases adjust the price and added usage for the time remaining. See today’s charge and your next renewal before confirming.

One account. One allowance.

No tokens or credit wallet. Capacity is relative to Pro’s managed usage, not faster performance or a guaranteed number of tasks.

Same product, different limits

Same product everywhere

Free, Pro, and Max all get the same assistant. Same voice. Same intelligence. Same capabilities. No gating by tier.

  • Multi-room music sync
  • Agentic tasks (calendar, browser, smart home, multi-step)
  • Encrypted memory
  • Music services: Spotify in the Windows desktop app, YouTube/Google music paths, and local files
  • Account-scoped cloud data when you sign in

What actually changes

Paid plans increase the included usage allowance for managed AI and phone usage. You can always use your own keys for LLM calls.

  • Usage allowance: Free is light usage to try the product. Pro covers regular daily use. Max handles heavier AI and phone workloads. Choose Add more usage in Billing to review a subscription capacity increase, or use BYOK for LLM calls.
  • Phone calls: No call-count cap is sold as a separate plan limit — outbound calls draw from the same usage allowance. Abuse, fraud, and concurrent-call limits still apply, and phone calling is for US numbers only.
  • AI source: Managed, BYOK (OpenAI / Anthropic / Google / OpenAI-compatible), or local (Ollama, Windows today). You can switch in Settings.

Questions

Is there a free AI voice assistant for Windows and Mac?

Yes. Viola’s Free plan is a full AI voice assistant for Windows and Mac: multi-room music, calendar and browser tasks, smart home, and phone calls, with a light managed usage allowance included. Bring your own API key and it stays free; a local model also keeps it free on Windows.

Do I need a subscription to use Viola?

No. The Free plan has the same features as Pro and Max, and BYOK or local-model use never requires a paid plan. Paid plans only add a larger managed usage allowance, and you can cancel anytime and keep Free access.

Is Viola available on Mac or mobile?

Viola is available on Mac now, as well as Windows 10 and 11 (64-bit). It is not on mobile yet; leave your email on the download page and we will send one email the day Viola reaches it.

Can I use Viola without paying?

Yes. The Free plan remains available.

What happens if I cancel Pro?

You keep Free plan access.

Do you offer refunds?

Monthly plans are not refunded for the current billing cycle once it has started. Annual plans can be refunded pro-rated if you cancel within the first 14 days of a subscription or renewal. Billing errors are always refundable — contact support within 60 days. See the refund policy in the Terms of Service for full details.

Do I need to pay for multi-room?

No. Multi-room audio sync is free for everyone.

What is included in my usage allowance?

Each plan includes a set amount of managed usage per month. Free includes a light allowance to get started, Pro includes more for regular daily use, and Max starts at twice Pro’s allowance; flexible capacity can increase it further. Free has no weekly usage cap. Click Add more usage in Billing to review a subscription increase before or after exhaustion, or use your own API key (BYOK) for LLM calls. Added usage is available after verified payment; usage does not roll over.

Can I lower my capacity or return after an increase?

Yes. Lower capacity takes effect at renewal; it does not remove usage you have already paid for. You can explicitly choose to return to your previous level at renewal when increasing. Annual changes apply until your annual renewal. Billing shows the effective date and next charge before confirmation.

What happens at the $1,000 monthly capacity ceiling?

$1,000 is the self-service monthly plan-level maximum, with 100× Pro’s monthly managed allowance. It is not unlimited usage. No automatic charges apply; contact support if you need to discuss capacity beyond this range.

Are phone calls capped?

Outbound phone calls draw from the same usage allowance. No call-count cap is sold as a separate plan limit. Viola still applies abuse, fraud, and concurrent-call limits to protect service stability, and phone calling is available for US numbers only.

Can I pay annually?

Yes. Pro is $120/year (two months free vs $144 billed monthly) and Max is $200/year (two months free vs $240 billed monthly). Flexible annual capacity costs ten times its monthly plan level, billed upfront for the year. Usage resets each month, including on annual plans.

Is BYOK really free?

Yes. BYOK LLM requests go from your device to your selected provider, not through Viola's managed AI. You pay your provider directly for the tokens you use.