What does an AI answering service cost per minute?

Effective in-plan rates in 2026 run from about $0.16 per minute (District AI, $39 for 250 minutes) to $0.48 per minute (Dialzara Business Lite, $29 for 60 minutes). Per-call vendors like Smith.ai charge $1.80 to $3.00 per answered call instead.

Why do two plans with similar monthly prices cost so differently in practice?

Because included volume, overage rates, and feature gates differ. A $29 plan with 60 minutes costs $0.48 per minute; a $39 plan with 250 minutes costs $0.16. After the bundle, overage rates vary from $0.14 to $0.48 per minute, so a busy month can double the gap.

What is an overage spending cap and why does it matter?

A spending cap is a hard monthly limit you set on usage billing. Without one, a viral post or a spam wave can turn into an unbounded bill. Among the vendors compared here, District AI is the one that advertises user-settable caps built into its billing.

Is a free AI answering service tier worth using?

Smith.ai offers a free tier with 25 calls per month, then $3.00 per call. For a business receiving more than one call a day, the per-call price catches up fast: 100 calls costs $225 on that model versus $39 to $79 on per-minute plans with room to spare.

AI Answering Service Pricing Compared: Per-Minute Rates for 2026

Comparing AI answering services on their monthly sticker price is how businesses end up overpaying. A $29 plan can cost three times more per minute than a $39 plan. This page does the arithmetic the pricing pages skip, with every number pulled from the vendor's own published pricing and linked for verification.

We build District AI, so we are in this table too. The math is the math.

The only number that compares plans fairly

Divide the monthly price by the included minutes. That is your effective per-minute rate, and it is the closest thing this market has to a unit price.

Vendor · plan	Monthly	Included	Effective $/min	Overage	Notes
District AIVoice Solo	$39	250 minutes	$0.156	$0.20/min, with a spending cap you set in Billing	Calendar booking, CRM, spam screening, and VIP caller recognition included at entry tier.
District AIVoice Starter	$79	500 minutes	$0.158	$0.18/min, with a spending cap you set in Billing	Same feature set as Solo with double the included minutes.
RosieProfessional	$49	250 minutes	$0.196	Not published on the pricing page	Calendar appointment booking and warm transfer start at the $149 Scale tier (1,000 min).
DialzaraBusiness Lite	$29	60 minutes	$0.483	$0.48/min	Top inbound tier is $349 for 1,000 minutes with $0.35/min overage.
My AI Front DeskBusiness-in-a-Box	$99	200 minutes	$0.495	Credit-based, roughly $0.25/min	$79/mo on annual billing. $20 Basic tier is chatbot-only with no voice minutes.
GoodcallStarter	$79	100 customers	n/a	$0.50 per unique customer over the monthly cap	Unlimited minutes, but capped at 100 unique customers per month on Starter.
Smith.aiAI Receptionist Free	Free	25 calls	n/a	$3.00 per call after 25 calls	Paid AI tiers: $150/mo for 75 calls ($2.00/call) or $270/mo for 150 calls.
Ruby (human)Starter	$250	50 minutes	$5.000	Higher tiers: $395/100 min, $720/200 min, $1,725/500 min	Human receptionists, not AI. Included for cost context.

Prices from each vendor's own pricing page (linked), last verified 2026-07-18. All prices USD.

Reading the table honestly:

District AI Solo is $0.156 per minute; Dialzara Lite is $0.483. Both are entry plans under $40. The difference is entirely in the included volume.
Per-call pricing punishes conversation. A five-minute intake call is one call to Smith.ai ($1.80 to $3.00) and five minutes to a per-minute vendor ($0.78 to $2.40 at in-plan rates). The longer your average call, the more per-minute pricing favors you; the shorter, the more per-call does.
"Unlimited" has a cap somewhere. Goodcall's unlimited minutes come with a 100-unique-customer monthly cap at $79 and $0.50 per customer after. For a business with lots of short calls from many callers, count customers, not minutes.
Human services cost an order of magnitude more. Ruby's entry plan is $5.00 per minute. That is the baseline this whole category disrupts.

After the bundle: the overage math

Overage is where similar-looking plans diverge. Run a 700-minute month through two entry plans:

| Scenario: 700 minutes in a month | District AI Starter ($79, 500 min) | Dialzara Plus ($199, 500 min) | | --- | --- | --- | | Base | $79.00 | $199.00 | | Overage on 200 min | 200 × $0.18 = $36.00 | 200 × $0.40 = $80.00 | | Month total | $115.00 | $279.00 |

Same call volume, same included minutes, 2.4x the bill. And that assumes you noticed the overage was accumulating at all.

Caps: the feature pricing pages don't advertise

An answering service bill is usage-based, which means it is unbounded by default. One vendor in this market built its entire pitch around overage anxiety, which tells you how real the fear is. The structural fix is simple: let the customer set a hard monthly spend limit.

District AI workspaces can set a spending cap in Billing. When the cap is hit, you choose what happens next instead of discovering it on an invoice. If you evaluate any vendor in this table, ask them the same question: can I cap my bill?

What we'd tell a friend to do

Estimate your monthly call minutes (calls per day × average minutes × 30).
Compute the effective rate for each plan at that volume, overage included.
Check the feature gates at the tier you would actually pay for, especially appointment booking and transfers.
Prefer vendors that publish overage rates and offer spend caps.
Hear the product handle a call before you hand over an email address.

That last one is easy to do right now: