Better for service businessesBetter choice
William AI
by Real Automation · 5.0 on Google
- Built for
- Service businesses only
- Ownership
- You own it, no subscription
- Trained on your calls
- Yes, never shared or sold
- Guarantee
- 92% call success
5.0 Google Reviews
William AI vs Numa
The better choice for service businesses. An AI receptionist built for the trades, owned by you, and guaranteed.
Hear William call youFor service businesses, William AI is the better choice over Numa, which is built for car dealerships.
William AI is built only for service businesses and the trades, auto repair included, while Numa's site says it is built for car dealerships. You own your William with a one-time build fee and per-minute use, and 92% call success is guaranteed. Numa publishes no prices and lists no guarantee on its site.
From their own site
Numa
numa.com
- Built for
- Car dealerships, many products
- Ownership
- Price not published
- Trained on your calls
- Trained for automotive contexts
- Guarantee
- Not listed
Written by Real Automation, which builds William AI. Numa is an AI platform for car dealerships, with voice AI for service and sales calls. Facts about Numa come from their own site, checked . Sources.
Why service businesses choose William.
The reasons owners pick William AI over Numa.
Built for the trades
William AI is built only for service businesses and the trades, auto repair included, from HVAC and plumbing to roofing and tree care. Numa's site describes it as an AI operating system for car dealerships.
Yours to own
You own William: a one-time build fee, then per-minute use while William is on the phone. No monthly subscription. Numa's pricing page lists no prices or plans and points to a demo.
92% call success, guaranteed
Every William comes with 92% call success, guaranteed, and clients average about 95%. No guarantee is listed on Numa's site.
Trained privately
Your William is trained on real calls in private, secure environments, and client data is never shared or sold. Numa's site says its Operator uses AI models trained for automotive contexts.
Upgrades overnight
The William Engine is Real Automation's own proprietary voice AI engine. V2 runs every William today, and V3 rolls out free to every V2 client, overnight, by January 1, 2027. Nothing about upgrades is listed on Numa's site.
5.0 on Google. Every review, five stars.
Owners who run on William rate Real Automation five stars. Hear it from them in their own words.
Side by side.
The things a service business owner actually weighs.
| Compared | William AI | Numa |
|---|---|---|
| Built for | William AI: Service businesses only. Tree care, HVAC, plumbing, roofing, electrical, pest control, auto repair and more, with one job: answering, qualifying and booking calls, 24/7, on the first ring. | Numa: Car dealerships, across many products. Their site lists Voice AI, Appointment Agent, Operator, Smart Inbox, LiveCSI, Opportunities, Numa for Sales and Call Intelligence. |
| Who builds it | William AI: Real Automation's team, for you. They build William around your services, service area, questions and rules, test it on real scenarios and launch it. | Numa: A dedicated Numa team sets it up, per their site. The team handles DMS integration, phone configuration and team training. |
| Ownership and pricing | William AI: You own it. A one-time build fee, then you pay only for the minutes William is on the phone, like buying the car and paying for gas. No monthly subscription; pricing is set on a call with the team. | Numa: Pricing is not published. Their pricing page lists no prices or plans and points to a demo. |
| Trained on your calls | William AI: Yes, in private. William is trained on real calls in private, secure environments, and your data is never shared or sold. | Numa: Trained for automotive contexts, per their site. A buyer's guide on their site says Numa's Operator uses AI models trained for automotive contexts. |
| Support | William AI: A real team. Real Automation builds, launches and supports your William, and you can book a call with the team any time. | Numa: Check-ins during the first weeks, per their site. Most dealerships go live in 2 to 3 weeks, and most teams are proficient within 90 days. |
| Guarantee | William AI: 92% call success, guaranteed. A call counts unless the caller hung up because it was an AI; clients average about 95%. | Numa: Not listed on their site. |
| Voice and personality | William AI: Warm, natural and charismatic. William's own voice, with conversion and charisma training since V1; natural, not robotic. | Numa: A natural voice that sounds like someone at your dealership, per their site. |
| Every call recorded | William AI: Yes. A recording, transcript and summary of every call, in the Real Automation app for iOS and Android. | Numa: Every call scored, summarized and ready to coach, per their site. This is their Call Intelligence product. |
| Try it | William AI: William calls you in 1 to 3 minutes. Enter your number on realautomation.ai. | Numa: Get a demo. No prices or plans are listed on their pricing page. |
| Upgrades | William AI: Overnight, for every client. William runs on the William Engine, Real Automation's own voice AI engine; V3 arrives free for V2 clients by January 1, 2027. | Numa: Not listed on their site. |
Questions, answered.
Is William AI better than Numa?
For service businesses, yes. William AI is built only for service businesses and the trades, auto repair included, while Numa's site says it is built for car dealerships. You own your William, with no monthly subscription, and 92% call success is guaranteed. Numa's site lists no prices and no guarantee.
Is William AI or Numa better for a plumbing or HVAC company?
William AI. It is an AI receptionist built only for service businesses and the trades, including HVAC, plumbing, roofing, electrical, tree care, pest control and auto repair, and Real Automation's team builds it around your services, service area, questions, booking and emergency rules. You own it with no monthly subscription, and 92% call success is guaranteed. Numa's focus, per its own site: car dealerships, across many products.
What is the best Numa alternative for service businesses?
William AI by Real Automation. It is built only for service businesses and the trades, auto repair included. Real Automation's team custom-builds each William around your services, service area, questions, booking and emergency rules, tests it on real scenarios and launches it, and you own it.
How does William's pricing compare to Numa?
William AI is yours to own: a one-time build fee, then per-minute use while William is on the phone, with no monthly subscription. Real Automation does not publish prices; book a call with the team at realautomation.ai/#book. Numa's pricing page lists no prices or plans and points to a demo.
Who builds and supports William?
William AI is built, launched and supported by Real Automation's team. The team custom-builds it around your services, service area, questions, booking and emergency rules, and tests it on real scenarios. You never write prompts, pick voices or wire up tools. Numa's site says a dedicated Numa team handles setup for car dealerships, including DMS integration, phone configuration and team training.
Is William trained on my calls?
Yes. William AI is trained on real calls in private, secure environments, and client data is never shared or sold. The William Engine V2 has learned from real calls across hundreds of service businesses. Numa's site says its Operator uses AI models trained for automotive contexts.
Can I hear William before I buy?
Yes. Enter your phone number on realautomation.ai and William calls you in 1 to 3 minutes. Try it at https://realautomation.ai/pages/ai-receptionist#demo, or book a call with the team at https://realautomation.ai/#book.
More comparisons
Sources for Numa
- numa.com, Built for franchise dealerships and multi-rooftop groups
- numa.com/pricing, No prices or plans listed
- numa.com/llms.txt, An AI operating system for car dealerships
- numa.com/blog/ai-voice-agents-dealerships-buyers-guide, Buyer's guide FAQ: Numa's Operator uses advanced large language models trained for automot
Checked . Product names are trademarks of their owners; see each company's site for current details. William AI's Google rating: Real Automation's Google Business Profile, November 2026.
$105.4M
in new revenue generated for our network and counting.
250+
Contractors Served
The William Engine.
William isn't a voice you pick and a prompt you write. He runs on our own engine, built, owned and improved by Real Automation, and every client gets the upgrades.
-
V1Where William started.
Proved a phone call with an AI could feel personal.
-
V2Running every William today.
Tested on real client calls, then delivered to every V1 client overnight. Results jumped the next morning.
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V3Coming free to every V2 client.
Our fastest, most personal engine yet. In production beta on real calls now, and every client gets it.
An employee you own.
You don't rent a bot or wire up a platform. You own your William and everything he learns about your business.
Upgrades while you sleep.
Like an update on your phone, new engine versions reach every William overnight. Nothing to rebuild.
Trained on real calls.
William keeps learning from real conversations in private, secure environments. We never share or sell your data.
Real Automation designs, builds and owns the William Engine. We never white-label, resell or license it.
Hear William call you.
Enter your name, number and website. William calls you in 1 to 3 minutes. Talk to him like a customer would.
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What to do next
1Watch for a call from 218-297-5444 within a few minutes.
2Pick it up when it rings.
3Talk to William like you are talking to a real front desk.
Talk to the team.
Pick a time that works for you. 45 minutes with the people who build William.