fonio.ai vs Rosie
The short answer
- fonio.ai costs least: €119 (about $133) a month for 100 calls and €164 (about $184) for 500.
- Rosie has the lowest advertised price, $49, but costs $149 at 100 calls.
- Pick fonio.ai if you want the lower bill, bookings made during the call or booking in Google Calendar.
- Pick Rosie if you want Spanish.
 fonio.aiEuropean small businesses and practices wanting every call answered in their languageVisit site |  RosieUS small businesses that want an agent trained on their website and Google profileVisit site | |
|---|---|---|
| Cost | ||
| At 100 calls a month | fonio.ai€119about $133Lowest | Rosie$149 |
| At 500 calls a month | fonio.ai€164about $184Lowest | Rosie$299 |
| Advertised from | fonio.ai€119 (about $133) a monthabout $133 | Rosie$49 a month |
| The advertised plan covers | fonio.aiThe €119 (about $133) plan covers all 100 calls. | RosieThe $49 plan it advertises stops at 83 calls, then moves you up a plan. |
| Bills | fonio.aiper minute | Rosieper minute |
| Keeps answering past your allowance | fonio.aiPartlyPast the included minutes the vendor auto-adds 100-minute packages at a published price | RosieYesNo per-minute overage rate |
| Free trial or plan | fonio.aiPartlyThere is a 14-day free trial of the paid plans | RosiePartlyA 7-day free trial of all features on every plan lets you forward your real line before the first charge |
| Month to month, cancel online | fonio.aiPartlyPlans are quoted per month with a cheaper yearly billing option | RosieYesMonth-to-month (renews every 30 days, annual prepay optional) with no cancellation fee |
| On the call | ||
| Books appointments | fonio.aiYesThe assistant checks real availability in a connected Google or Microsoft calendar | RosiePartlyBooking straight into your calendar during the call starts on Scale |
| Transfers to a person | fonio.aiPartlyTransfers are blind by default, handed straight to a number, SIP URI or team member | RosiePartlyCold and warm transfers (Rosie briefs the person before connecting) start on Scale |
| Human receptionists as backup | fonio.aiNoThere is no staffed answering service behind the AI | RosieNot stated |
| After-hours rules | fonio.aiYesBusiness hours are stored for the company and each transfer | RosieYesAnswers 24/7 on every plan |
| Urgent calls escalated | fonio.aiPartlyThe vendor says the assistant recognizes urgent medical requests and flags them | RosiePartlyEmergencies reach a person only through transfer scenarios you describe |
| Texts your callers | fonio.aiPartlyThe assistant can text the caller or your team before, during or after a call | RosiePartlyProfessional only texts callers an appointment link |
| Call summary by text | fonio.aiPartlyA call summary is produced after every conversation and shown in the app | RosieYesEvery plan sends an email and/or text notification after each call with a brief overview |
| Language, privacy and trying it | ||
| Languages | fonio.aiYes60+ languages | RosieYesEnglish and Spanish |
| HIPAA, with a signed BAA | fonio.aiNot stated | RosiePartlyThe terms refer to a HIPAA Business Associate Agreement signed separately with Rosie |
| Hear it before you buy | fonio.aiYesThe vendor offers a test call where the AI phones a number you enter | RosieYesThe homepage plays four recorded sample calls, for example a move-out cleaning request |
| What it connects to | ||
| Google Calendar | fonio.aiYesGoogle Calendar, Microsoft Outlook through a connected Microsoft account, Calendly | RosiePartlyBooks directly into Google Calendar, Calendly, Acuity |
| Outlook | fonio.aiYesGoogle Calendar, Microsoft Outlook through a connected Microsoft account, Calendly | RosieNoOnly one calendar can be connected, and Outlook is not listed |
| Calendly | fonio.aiYesGoogle Calendar, Microsoft Outlook through a connected Microsoft account, Calendly | RosiePartlyBooks directly into Google Calendar, Calendly, Acuity |
| Your trade’s software | fonio.aiPartlyServiceTitan is documented for trades and TheFork for restaurants | RosiePartlyLogs calls into field-service tools Jobber, Housecall Pro, ServiceM8, JobTread, JobNimbus |
| Keep your number | fonio.aiYesThe standard setup keeps your existing business number and forwards it to a fonio number | RosieYesYou keep your existing number and forward calls |
| In short | ||
| What it is | fonio.aifonio.ai is a European AI phone assistant that answers a business's incoming calls around the clock, books appointments in a connected calendar and passes caller details into CRMs and spreadsheets. It is sold self-serve in per-minute plans, with GDPR terms and EU hosting.All answers for fonio.ai | RosieRosie is an AI receptionist for US small businesses: you forward your existing line to a Rosie number, and an agent trained on your website and Google profile answers it. It is sold self-serve, billed by the minute, with a mobile app and website chat.All answers for Rosie |
| Checked | fonio.aiOctober 15, 2026 | RosieOctober 15, 2026 |
Costs are for 100 or 500 calls a month of 2½ minutes each, on the cheapest public plan. How we price
“About” figures are converted at the European Central Bank rate of Oct 15, 2026.