Most of this market sells a subscription. You pay every month, that fee is metered and capped by plan, and you get moved into a higher tier or charged an overage when the volume finally shows up. Nothing is wrong with that model. It is a genuinely good deal for some businesses and a poor one for others, and which one you are depends almost entirely on whether the phone is the problem or a symptom of one.
Acuity sells the other model. You pay once to have a system built around your operation, you own it, and Acuity never adds a meter of its own on top. The platforms underneath still meter, and those invoices come to you directly at their published rates.
Below is the same money laid out four ways. Smith.ai appears twice on purpose, because it sells two different products under one brand and they are priced nothing alike: an AI receptionist, and a plan staffed by actual people. Comparing a build against the human plan and calling it an AI comparison is the most common trick in this category, and it would flatter Acuity by about a hundred and fifty dollars a month.
Read the Acuity column as a range rather than a price. At the bottom of it you paid once and never started the care plan. At the top you kept the care plan running for three straight years, and even there it costs less than every subscription on this table that actually books appointments. Both Acuity figures are floors, and they move together: a bigger build costs more up front and carries a higher care plan, because there is more of it to watch. A system spanning several locations or departments is not going to be maintained for $75 a month, and nobody should tell you otherwise. Hands-on management of a larger build sits nearer $300 a month, and you get that number on the same call as the build quote.
If you want the wider version of this, thirteen vendors priced off their own pages, there is a full AI receptionist comparison covering the human services and the restaurant-specific options too. Do the same correction on the Rosie column before you trust it. The $49 tier in the table takes messages; it does not book appointments or transfer calls. The tier that does both is $149 a month, which is $5,364 over the same three years. Compare against whichever tier does the job you actually need done, not the cheapest one on the page.
Acuity AI Consulting wrote this page and sells one of the options on it. Competitor figures were read from each company’s own public pricing page on 29 July 2026 (Smith.ai AI receptionist, Smith.ai live receptionists, Rosie) and change without notice.
There is a cost that none of the pricing pages above put on the page, and it applies to all of them. Every one of these products runs on platforms that meter by the minute. Vapi, the voice platform these builds run on, publishes a platform fee of $0.05 per minute of call time with speech and language model costs passed through at cost (checked 29 July 2026), and phone numbers and minutes come from a telephony provider at its own published rates. The difference is who holds the account and who marks it up. With an Acuity build you hold it, you pay those providers directly at their published rates, and Acuity adds nothing on top. So the honest version of the row above is this: Acuity’s fee is not per call, the usage underneath it still is, and that part of your bill moves with your call volume. Ask every vendor you talk to what runs underneath their flat rate.
Read this part When the subscription is the better buy.
If the phone is the entire problem, buy the subscription. If what you need is somebody taking a message when you cannot pick up, and it does not have to touch your calendar, your CRM, or anything else you run, then a $1,500 build is money you do not need to spend.
Rosie starts at $49 a month for 250 minutes, with a seven-day trial. My AI Front Desk starts at $20 a month. Goodcall is $79 per agent per month with unlimited minutes included. Smith.ai is the expensive end at $300 a month for 30 calls, and publishes a money-back guarantee (a refund of your initial plan inside the first two weeks, up to $1,000 within 30 days) with no long-term contract, which is a fair way to try one of these before committing.
Those are real products at real prices. Acuity does not compete at $49 a month and would not want to. A build earns the difference only when the call has to become something else: a qualified lead in your CRM, a slot on the right person’s calendar, a text to the customer, a note to you, and none of it retyped by a human at 9pm. The metered products answer the call, and the better tiers will book a slot and send a text. What they do not do is reach into the rest of your operation. If you want the longer version of that argument, the after-hours call piece works through it.