Short answer: if you miss calls while you work — most small businesses answer barely a third of theirs — an AI receptionist is the highest-return first agent you can hire. The best fits for a solo operation answer in your business's name, handle the routine questions, book straight into your calendar, and text or email you a summary you can act on. The right pick depends less on voice quality (all the leaders sound fine now) and more on how you are billed.
That billing is the trap on this page. One vendor charges per minute, another per call, another per unique caller, another a flat monthly fee — so the 'cheapest' plan on a pricing page can be the most expensive at your call volume. Every agent below is converted to the same two volumes — roughly 50 and roughly 200 calls a month — so you can see what you would actually pay, including the overage rates that bite in a busy month.
Booking matters as much as answering. An agent that takes a message is a voicemail with better manners; an agent that checks your real calendar, offers real slots and sends confirmations finishes the job. Each listing states whether booking is native, via a calendar integration, or not offered.
| # | Agent | True solo cost (low) | True solo cost (typical) | Billing unit | No-code | Setup | Human control | Solo fit |
|---|---|---|---|---|---|---|---|---|
| 1 | Upfirst Answers every call and books the appointment for the lowest per-call entry price in this job | At ~50 calls/mo (any length), about $54.95/mo on Starter ($24.95 for 30 calls plus 20 extra calls at $1.50 each). | At ~200 calls/mo (any length), about $159.95/mo on Pro, which includes 300 calls, cheaper than stacking overage on Premium. | per call | Under 1 hour | Acts + logs everything | Solo-Ready | |
| 2 | Goodcall Answers and books without ever metering minutes, billing only for each different customer helped | At ~50 calls/mo from roughly 35 different callers, $79/mo on Starter, which includes 100 unique customers. | At ~200 calls/mo from roughly 140 different callers, about $111/mo on Starter ($79 plus about 40 extra unique customers at 79c each), or $129/mo flat on Growth. | per unique caller | Under 1 hour | Acts + logs everything | Solo-Ready | |
| 3 | Rosie AI Cheap minute bundles for 24/7 answering, with real calendar booking once you step up a tier | At ~50 calls/mo at ~3 minutes each (~150 minutes), $49/mo on Professional for answering and messages, or $149/mo on Scale if you need in-call booking. | At ~200 calls/mo at ~3 minutes each (~600 minutes), $149/mo on Scale, which includes 1,000 minutes and direct booking. | per minute | Under 1 hour | Acts + logs everything | Solo-Ready | |
| 4 | Dialzara The lowest entry price for a self-serve receptionist that still books and routes calls | At ~50 calls/mo at ~3 minutes each (~150 minutes), about $72/mo on Business Lite ($29 for 60 minutes plus 90 minutes at $0.48/min). | At ~200 calls/mo at ~3 minutes each (~600 minutes), about $239/mo on Business Plus ($199 for 500 minutes plus 100 minutes at $0.40/min). | per minute | Under 1 hour | Acts + logs everything | Solo-Ready | |
| 5 | NextPhone One flat monthly bill for unlimited inbound calls, however busy the month gets | At ~50 calls/mo, $199/mo on Pro, the same flat price regardless of call length or count. | At ~200 calls/mo, still $199/mo on Pro, which is where the flat model starts to beat most metered rivals. | flat monthly | Same day | Acts + logs everything | Solo-Ready | |
| 6 | Smith.ai AI answering with trained human receptionists behind it when a call gets complicated | At ~50 calls/mo (any length), about $75/mo using the Free plan's 25 included calls plus 25 extra calls at $3.00 each, before moving to Pro at $150/mo. | At ~200 calls/mo (any length), about $385/mo on Pro at the 150-call level ($270 plus 50 extra calls at $2.30 each). | per call | Same day | Acts + logs everything | Solo-Ready | |
| 7 | Slang AI A phone host built only for restaurants, booking tables straight into your reservation system | At ~50 calls/mo for one location, $399/mo on Core, the same flat per-location price regardless of call count. | At ~200 calls/mo for one location, still $399/mo on Core, so cost per booking falls sharply as volume rises. | flat monthly per location | Same day | Acts + logs everything | Solo-Ready | |
| 8 | Sameday AI An AI customer service rep for home services that books jobs straight onto your dispatch board | At ~50 calls/mo at ~3 minutes each (~150 minutes), $449/mo on Launch, well inside its 500 included minutes but a high price for that volume. | At ~200 calls/mo at ~3 minutes each (~600 minutes), $789/mo on Scale for 1,000 minutes, since Launch's 500 minutes would be exceeded and overage is not published. | per minute | Multi-day | Acts + logs everything | Small-Team Ready | |
| 9 | Retell AI Pay-as-you-go voice agent platform to build your own receptionist for cents per minute | At ~50 calls/mo at ~3 minutes each (~150 minutes), about $17/mo at the pricing page's ~$0.11/min default estimate, plus $2/mo for a Retell phone number. | At ~200 calls/mo at ~3 minutes each (~600 minutes), about $66/mo at the ~$0.11/min default estimate, plus $2/mo for a phone number, excluding your build time. | per minute | Multi-day | Acts autonomously | Technical | |
| 10 | Vapi Developer voice platform with swappable models and voices for a receptionist you fully own | At ~50 calls/mo at ~3 minutes each (~150 minutes), about $12-$20/mo using Vapi's calculator default range of roughly $0.08-$0.13/min all-in, excluding build time. | At ~200 calls/mo at ~3 minutes each (~600 minutes), about $48-$78/mo at the same $0.08-$0.13/min all-in calculator range, excluding build time. | per minute | Multi-day | Acts autonomously | Technical | |
| 11 | Bland AI One bundled per-minute rate for building phone agents, with the model and voice included | At ~50 calls/mo at ~3 minutes each (~150 minutes), about $21/mo on Start at $0.14/min, plus telephony at pass-through cost. | At ~200 calls/mo at ~3 minutes each (~600 minutes), about $84/mo on Start at $0.14/min, plus telephony; Build only pays off at far higher minutes. | per minute | Multi-day | Acts autonomously | Technical |
Answers every call and books the appointment for the lowest per-call entry price in this job
Best first AI receptionist for most solo founders, with the catch that busy phones make per-call billing add up.
Answers and books without ever metering minutes, billing only for each different customer helped
Excellent for a solo shop with repeat callers and long calls, with the catch that extra locations mean extra agent fees.
Cheap minute bundles for 24/7 answering, with real calendar booking once you step up a tier
Great value if your calls are short, with the catch that true booking starts at $149, not the $49 headline.
The lowest entry price for a self-serve receptionist that still books and routes calls
Cheapest way to start for a quiet phone, with the catch that overage quietly erases the saving when calls pick up.
One flat monthly bill for unlimited inbound calls, however busy the month gets
The calmest pricing in this job for a busy phone, with the catch that a quiet phone overpays for unlimited.
AI answering with trained human receptionists behind it when a call gets complicated
The safest pick for valuable, complex intake calls, with the catch that you pay a clear premium for the human safety net.
A phone host built only for restaurants, booking tables straight into your reservation system
Best phone answer for a solo full-service restaurant, with the catch that the per-location price only pays back if missed calls are costing real tables.
An AI customer service rep for home services that books jobs straight onto your dispatch board
Powerful for a growing trades team on ServiceTitan-class software, with the catch that a true solo operator overpays for capacity they will not use.
Pay-as-you-go voice agent platform to build your own receptionist for cents per minute
Cheapest to run for a technical founder who will build it, with the catch that your time is the real subscription cost.
Developer voice platform with swappable models and voices for a receptionist you fully own
The most ownable way to run this job for a technical founder, with the catch that there is no receptionist until you build one.
One bundled per-minute rate for building phone agents, with the model and voice included
Predictable per-minute economics for a founder with a builder, with the catch that the receptionist itself is entirely your project.
Usually, yes — the better services identify themselves as a virtual receptionist, and disclosure is good practice (and required in some places). In practice callers care about getting booked or answered, and completion rates are high for routine calls. Complex or emotional calls should route to you, and each listing notes how handoff works.
If your calls are short and seasonal, per-minute often wins. If customers talk — intake, quotes, troubleshooting — per-minute bills surprise people. The True Solo Cost figures on this page show both volumes so you can see where each model crosses over.
Most leaders connect to Google Calendar, Outlook or tools like Calendly and book real availability. Each listing names the calendar integrations we verified on the vendor's own pages. If booking matters most, filter this page for it — message-taking-only services are marked as such.
Configured well: it takes a structured message, promises a callback window, and alerts you immediately. Configured badly: the caller hits a wall. Setup quality is part of our Solo-Ready scoring — listings with weak fallback options say so in their cons.
Building for a different job? Do the Books · Find & Chase Leads · Run Operations & Workflows · Answer Customers · Run Admin & Scheduling