Smith.ai vs Revin: The short answer

Smith.ai is an AI receptionist from a company that has run a live answering service for years. It picks up 24/7, screens the caller, runs a short intake, books where it can, and hands the harder calls to one of its 500-plus live receptionists. Revin is an AI agent built only for the trades: A dedicated Revin engineer builds it from your own call recordings, and it qualifies the homeowner and books the job into ServiceTitan, AccuLynx, Lead Perfection, or Salesforce while the caller is still on the line.

The difference is what a call is for. A receptionist's job is a handled call: Answered, screened, summarized, passed on. In the trades the call has one job, a booked appointment in the CRM with the details a dispatcher, a rep, or a designer needs. For a single-location shop where the owner takes most calls, Smith.ai is a reasonable receptionist. For an operator with several locations, a trade CRM, and call volume that moves with the weather, the receptionist model breaks in the first busy week.

Where Smith.ai makes sense

A one-truck plumber or a single-crew remodeler misses calls while on a job. Smith.ai fixes that in an afternoon: About 15 minutes of setup, a playbook for how calls should go, a plan sized in calls per month, and a live receptionist behind the AI for the caller who will not talk to a machine. If most of your calls can end in "someone will call you back", that is enough.

A receptionist takes the message. The job still has to be booked

Look at where Smith.ai puts the appointment. In ServiceTitan, it books through Scheduling Pro, the online booking tool homeowners use on your website, so it sees the job types and windows you expose publicly, not your dispatch board. In AccuLynx, the connection runs through Zapier and creates a lead after the call ends, with no inspection on the calendar. In Salesforce, it writes the contact and the notes. Then a summary goes to your team, and someone books the job.

That is a callback. While somebody reads the summary and dials, the homeowner is on the phone with the next roofer. Revin books during the call: The job in ServiceTitan in the right business unit and arrival window, the inspection in AccuLynx assigned by territory, the consult in Lead Perfection or Salesforce with budget and decision-makers noted. Your office opens the CRM to a booked slot.

Five questions by ticket, or your own calls

Smith.ai's standard intake is five short-answer questions, and more are a paid extension. You configure the agent through a call playbook, and when it needs to change you file a change request and Smith.ai's team makes the edit. A roofing insurance call is not five questions. Neither is a no-heat call where the tech needs the equipment, its age, and whether the pilot is out before rolling a truck. An operator with eight locations has eight sets of hours, service areas, and on-call rotations, each one a ticket every time it changes.

Revin skips the playbook. A dedicated AI engineer builds your agent from your recorded calls, so it asks your qualifying questions in your order, handles the objections your CSRs hear, and uses the words your customers use. When a rebate program starts or a location opens, you tell your engineer, and every location answers to the same standard.

A playbook tells the agent what to say. Your recordings teach it what your callers do.

The storm week is billed one call at a time

Smith.ai bills per call. Every call the AI answers counts against the plan, calls past the plan are billed one by one, and on its live receptionist plans appointment booking and a second CRM integration are per-call add-ons too. The hail week that puts 40 homeowners on one street on the phone is the week that invoice grows fastest. It is also the week the AI escalates more calls to a live receptionist who works for Smith.ai, is shared across every Smith.ai client, and is reading your playbook for the first time.

Revin answers every call at once, at the same quality, with no concurrency cap. When a call needs a human, it transfers to your own team with full context. Before you sign with any vendor, ask how the invoice behaves in your busiest week.

What Revin does for your trade

HVAC: Revin takes the 2 AM no-heat call at any of your locations, tells the emergency from the maintenance request, and books the visit into ServiceTitan in the right business unit and arrival window.

Roofing: Revin handles the post-storm surge across every territory, captures roof type, damage, and insurance status, and books the inspection into AccuLynx, so each rep starts the day with appointments instead of voicemails.

Home improvement: Revin qualifies scope, budget, and who is making the decision on the first call, then books the design consult into Lead Perfection or Salesforce with the notes your designer needs.

Outbound is where the second half of revenue sits

Smith.ai answers when the phone rings. Its outbound is a separate service for web leads and callbacks, and nothing in it knows that a homeowner got a replacement quote nine days ago and has not decided. Revin does. For an operator quoting 300 replacement jobs a month and closing 35% on the first visit, 195 homeowners leave each month with a number and no decision. Revin calls and texts them on the cadence you set, answers the question that stalled the sale, and books the install or the second visit into the same CRM record.

A receptionist makes sure the call was handled. Revin makes sure the job was booked.

Smith.ai vs Revin at a glance

Sources: Smith.ai website, pricing pages, support documentation, and public materials, September 2026.