fonio.ai vs Relay by Leva Build
The short answer
- fonio.ai costs least at 100 calls a month: €119 (about $133).
- Relay by Leva Build costs least at 500: A$199 (about $138).
- Pick fonio.ai if you want the lower bill at 100 calls, booking in Outlook or booking in Calendly.
- Pick Relay by Leva Build if you want the lower bill at 500 calls.
 fonio.aiEuropean small businesses and practices wanting every call answered in their languageVisit site |  Relay by Leva BuildAustralian tradies on ServiceM8 who miss calls while they are on the toolsVisit site | |
|---|---|---|
| Cost | ||
| At 100 calls a month | fonio.ai€119about $133Lowest | Relay by Leva BuildA$199about $138 |
| At 500 calls a month | fonio.ai€164about $184 | Relay by Leva BuildA$199about $138Lowest |
| Advertised from | fonio.ai€119 (about $133) a monthabout $133 | Relay by Leva BuildA$199 (about $138) a monthabout $138 |
| The advertised plan covers | fonio.aiThe €119 (about $133) plan covers all 100 calls. | Relay by Leva BuildThe A$199 (about $138) plan covers all 100 calls. |
| Bills | fonio.aiper minute | Relay by Leva Buildflat fee |
| Keeps answering past your allowance | fonio.aiPartlyPast the included minutes the vendor auto-adds 100-minute packages at a published price | Relay by Leva BuildNoThere is no allowance to exceed: the vendor sells unlimited calls at a flat rate |
| Free trial or plan | fonio.aiPartlyThere is a 14-day free trial of the paid plans | Relay by Leva BuildPartlyA seven-day free trial puts it on the real line with no card |
| Month to month, cancel online | fonio.aiPartlyPlans are quoted per month with a cheaper yearly billing option | Relay by Leva BuildYesIt is sold month to month with cancellation at any time and no lock-in |
| On the call | ||
| Books appointments | fonio.aiYesThe assistant checks real availability in a connected Google or Microsoft calendar | Relay by Leva BuildPartlyIt checks live ServiceM8 availability and captures the booking during the call |
| Transfers to a person | fonio.aiPartlyTransfers are blind by default, handed straight to a number, SIP URI or team member | Relay by Leva BuildNot stated |
| Human receptionists as backup | fonio.aiNoThere is no staffed answering service behind the AI | Relay by Leva BuildNot stated |
| After-hours rules | fonio.aiYesBusiness hours are stored for the company and each transfer | Relay by Leva BuildYesIt answers around the clock at the same rate |
| Urgent calls escalated | fonio.aiPartlyThe vendor says the assistant recognizes urgent medical requests and flags them | Relay by Leva BuildPartlyEmergencies are detected from keywords and flagged as urgent inside the SMS summary |
| Texts your callers | fonio.aiPartlyThe assistant can text the caller or your team before, during or after a call | Relay by Leva BuildNot stated |
| Call summary by text | fonio.aiPartlyA call summary is produced after every conversation and shown in the app | Relay by Leva BuildYesAn SMS lands within seconds of the call ending carrying the caller's name, job detail |
| Language, privacy and trying it | ||
| Languages | fonio.aiYes60+ languages | Relay by Leva BuildNot stated |
| HIPAA, with a signed BAA | fonio.aiNot stated | Relay by Leva BuildNot stated |
| Hear it before you buy | fonio.aiYesThe vendor offers a test call where the AI phones a number you enter | Relay by Leva BuildYesThe home page offers a recorded sample of a real call |
| What it connects to | ||
| Google Calendar | fonio.aiYesGoogle Calendar, Microsoft Outlook through a connected Microsoft account, Calendly | Relay by Leva BuildYesServiceM8 scheduling is the headline integration |
| Outlook | fonio.aiYesGoogle Calendar, Microsoft Outlook through a connected Microsoft account, Calendly | Relay by Leva BuildNoOutlook, Microsoft 365 and Calendly are not mentioned anywhere on the site |
| Calendly | fonio.aiYesGoogle Calendar, Microsoft Outlook through a connected Microsoft account, Calendly | Relay by Leva BuildNoOutlook, Microsoft 365 and Calendly are not mentioned anywhere on the site |
| Your trade’s software | fonio.aiPartlyServiceTitan is documented for trades and TheFork for restaurants | Relay by Leva BuildPartlyServiceM8, the Australian trades job-management tool, is connected by OAuth |
| Keep your number | fonio.aiYesThe standard setup keeps your existing business number and forwards it to a fonio number | Relay by Leva BuildYesYou keep the existing business number and divert it to Relay |
| 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 | Relay by Leva BuildRelay is Leva Build's AI phone receptionist for Australian trades businesses, answering calls around the clock in an Australian voice. It checks live ServiceM8 availability, captures booking details for the owner to confirm, and texts a summary after every call.All answers for Relay by Leva Build |
| Checked | fonio.aiOctober 15, 2026 | Relay by Leva BuildOctober 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.