Short answer
For a small service business that takes bookings by phone, the right AI receptionist is the one that books straight into the calendar you already use, speaks your callers' languages and confirms every booking by text. US tools such as Smith.ai, Goodcall, Rosie, Dialzara and My AI Front Desk are strong in English and Spanish. Fonio covers many European languages. ZvonAI is built for Poland and Central Europe: natural Polish on every plan and Polish, English, Ukrainian and Russian inside one call from the Pro plan.
Prices below were checked on each vendor's own pricing page on 25 October 2026. They change often, so confirm before you buy.
What to compare before you choose
Does it book, or only take messages? Many answering tools write down a request and leave the booking to you. A real booking tool checks free slots during the call, saves the appointment and blocks the time.
Which calendar does it write into? Ask for the exact names. A vague "integrates with your tools" usually means Zapier, which you set up and maintain yourself.
Which languages, and inside one call? If your callers mix Polish, English and Ukrainian, a tool that serves one language per line will lose some of them.
What happens after hours? Look for a choice: answer around the clock, take messages only, or say you are closed while still answering questions.
How is the price counted? Per minute, per call and per unique caller give very different bills for the same month.
Where is the data processed? Businesses in the EU need a data processing agreement (GDPR Art. 28) and a clear answer on which parts run outside the EU.
The comparison
| Tool | Entry price per month | Included | Languages | Booking |
|---|---|---|---|---|
| ZvonAI | 349 PLN net (about €80) | 350 min, 50 SMS | Polish or English; PL, EN, UK, RU in one call from Pro | Google Calendar, Apple iCloud, ZvonAI calendar |
| Fonio | €119 (€99 billed yearly) | 1,000 min | 60+ languages | Connects your calendar tool |
| Smith.ai AI Receptionist | Free plan, Pro from $150 | 25 calls free, 75 calls on Pro | Not listed on the pricing page | AI scheduling (Calendly and more) |
| Goodcall | $79 | 100 unique customers | Not listed on the pricing page | Zapier and external tools |
| My AI Front Desk | $99 ($79 billed yearly) | 200 min | 20+ languages | Calendars through Zapier |
| Dialzara | $29 | 60 min | English and Spanish | Appointment booking with calendar integration |
| Rosie | $49 | 250 min | English and Spanish | Booking links by text; direct booking from $149 |
Each tool in one paragraph
ZvonAI
ZvonAI answers in natural Polish, books into Google Calendar, Apple iCloud or its own calendar (Outlook is coming soon) and sends an SMS confirmation plus reminders 24 hours and 2 hours before the visit. Hotels and restaurants get room and table availability, and deposits go out as a payment link by SMS. Pro (1,200 PLN, 1,300 minutes, up to 3 calls at once) adds several languages inside one call and call recording. Every plan starts with a 14-day trial, no card required. It does not connect to Booksy, ZnanyLekarz or Docplanner today; for those it takes a booking request that you confirm.
Fonio
Fonio is a European voice assistant with a generous minute allowance (1,000 minutes on Solo) and support for more than 60 languages. Its pricing page offers a 30-day money-back guarantee rather than a free trial. A good fit for businesses that need many languages and high volume.
Smith.ai AI Receptionist
Smith.ai prices per call rather than per minute, with a free plan of 25 calls and a Pro plan from $150 for 75 calls. Its AI scheduling works with Calendly and other tools. Strong for US businesses that may later want Smith.ai's human receptionists as a backup.
Goodcall
Goodcall counts unique customers per month, not minutes, starting at $79 for 100 customers. You can try a demo agent free and pay only when you connect a number. Booking runs through external tools and Zapier.
My AI Front Desk
My AI Front Desk costs $99 per month ($79 billed yearly) for 200 minutes, offers a 7-day free trial and says it speaks 20+ languages. Calendars, CRMs and other apps connect through Zapier.
Dialzara
Dialzara has the lowest entry price here: $29 for 60 minutes, English and Spanish, with appointment booking and a 7-day free trial. Fine for very low call volumes in English-speaking markets.
Rosie
Rosie starts at $49 for 250 minutes in English and Spanish, but on that plan it sends a booking link by text. Booking directly into your calendar starts on the $149 Scale plan.
How to choose
- Your callers speak Polish, Ukrainian or Russian: pick a tool that serves those languages natively. ZvonAI covers all four on Pro; Fonio covers many more languages.
- You need the booking done on the call: check that your plan books directly, not by text link or Zapier.
- Your calls are short and many: per-call or per-customer pricing can beat per-minute pricing, and the reverse for long calls.
- You are in the EU: ask for the DPA before the trial and read which parts run outside the EU.
Where ZvonAI fits
ZvonAI is the choice for small and medium-sized businesses in Poland and Central Europe that take bookings by phone: clinics, salons, law firms, hotels, restaurants, workshops and trades. It answers in the caller's language, books into the calendar you already use, confirms by SMS and tells you in the dashboard which calls still need you.
FAQ
What is the cheapest AI receptionist that books appointments? Among the tools above, Dialzara starts at $29 per month for 60 minutes with booking included. Cheap plans often cap minutes tightly, so compare the cost per booked appointment, not the sticker price.
Can an AI receptionist book into Google Calendar? Yes. ZvonAI books into Google Calendar and Apple iCloud directly; several US tools connect calendars through Zapier or Calendly.
Which AI receptionist speaks Polish? ZvonAI was built for Polish first and speaks it on every plan. Fonio also supports Polish among its 60+ languages.
Do AI receptionists answer after hours? Yes, that is the main use. With ZvonAI you choose whether it answers around the clock, takes messages only or tells callers you are closed while still answering questions.
Is an AI receptionist GDPR compliant? It can be. Ask for a data processing agreement and a clear list of where each part runs. ZvonAI provides the DPA in the dashboard from day one, keeps the database and recordings in the EU (Warsaw) and runs the language model and voice synthesis under Standard Contractual Clauses.
Try ZvonAI free for 14 days at zvonai.ai, no card required.