Kalyvox vs Sona by Quo
The short answer
- Sona by Quo costs least at both 100 and 500 calls a month.
 Kalyvoxsmall field-service and professional teams that cannot answer the phone while workingVisit site |  Sona by Quosmall US and Canadian teams already wanting one phone system to answer missed callsVisit site | |
|---|---|---|
| Cost | ||
| At 100 calls a month | Kalyvox136.50 EUR | Sona by Quo$82Lowest |
| At 500 calls a month | Kalyvox326.50 EUR | Sona by Quo$232Lowest |
| Advertised from | Kalyvox$89 a month | Sona by QuoFree, then $25 a month |
| The advertised plan covers | KalyvoxThe 89 EUR plan covers 0 of 100 calls.100 cost extra. | Sona by QuoThe $25 plan covers 40 of 100 calls. Tier 3 costs less for all 100. |
| Bills | Kalyvoxper minute | Sona by Quoper call |
| Keeps answering past your allowance | KalyvoxYesThere is no allowance to exceed: extra volume keeps billing at the same per-minute rate… | Sona by QuoYesThe vendor documents both behaviours and which is the default: with overages off Sona… |
| Free trial or plan | KalyvoxPartlySeven days free with a working assistant you can forward real calls to and phone… | Sona by QuoPartlyThere are two free ways in but each is bounded: a 7-day trial of everything including… |
| Month to month, cancel online | KalyvoxYesMonth-to-month with no commitment, cancellable from the account settings without… | Sona by QuoYesMonth-to-month is published alongside a cheaper annual option… |
| On the call | ||
| Books appointments | KalyvoxYesThe assistant reads live calendar availability… | Sona by QuoPartlySona can text a scheduling link mid-call and, with Jobber connected… |
| Transfers to a person | KalyvoxYesRule-based transfer by detected intent, and on documented flows the assistant collects… | Sona by QuoPartlyTransfers to a teammate, a shared inbox or an external number are supported and the… |
| Human receptionists as backup | KalyvoxNoNo human operators sit behind the AI: when no transfer target is available the assistant… | Sona by QuoNot stated |
| After-hours rules | KalyvoxYesAnswers 24/7 and adapts the greeting and script to your configured opening hours… | Sona by QuoYesBecause Sona is a step in Quo's call flow builder you can place it only after the… |
| Urgent calls escalated | KalyvoxPartlyEscalation fires on criteria you define, by keyword transfer or SMS to the on-call contact | Sona by QuoPartlyEscalation is real but is something you author: a job instruction can detect the… |
| Texts your callers | KalyvoxPartlyIt can text a booking link mid-call when the caller's number is a mobile… | Sona by QuoYesA Send SMS action texts the live caller from the same business number… |
| Call summary by text | KalyvoxPartlyEvery call produces a structured card by notification, email or text… | Sona by QuoPartlySummaries and transcripts land in the Quo inbox immediately and can be pushed to email or… |
| Language, privacy and trying it | ||
| Languages | KalyvoxPartlyEnglish and French | Sona by QuoPartlyEnglish, Spanish and French |
| HIPAA, with a signed BAA | KalyvoxNot stated | Sona by QuoPartlyA BAA is signed on both paid plans, but the vendor carves texting out of covered services… |
| Hear it before you buy | KalyvoxPartlyThere is no public demo number or recorded sample call | Sona by QuoYesA public demo line is published so you can hear Sona before signing up… |
| What it connects to | ||
| Google Calendar | KalyvoxYesGoogle Calendar and Microsoft Outlook connect in one authorization and are booked during… | Sona by QuoYesQuo's own integrations directory lists CRMs, field-service and automation tools but no… |
| Outlook | KalyvoxYesGoogle Calendar and Microsoft Outlook connect in one authorization and are booked during… | Sona by QuoYesQuo's own integrations directory lists CRMs, field-service and automation tools but no… |
| Calendly | KalyvoxYesa Calendly-style link can be texted instead when no calendar is connected | Sona by QuoYesQuo's own integrations directory lists CRMs, field-service and automation tools but no… |
| Your trade’s software | KalyvoxNoThe vendor's integration inventory names only Google Calendar, Zapier and ChatGPT… | Sona by QuoYesTrade systems are covered directly - Jobber… |
| Keep your number | KalyvoxYesYou keep your existing landline or mobile number and forward it permanently… | Sona by QuoYesQuo lists basic and advanced call forwarding on both plans and documents routing calls… |
| In short | ||
| What it is | KalyvoxKalyvox is a Toulouse-built AI receptionist that answers forwarded business calls around the clock, qualifies each caller against rules you configure and books appointments into a connected calendar. Every handled call becomes a structured ticket with summary, transcript and next action.All answers for Kalyvox | Sona by QuoSona is the AI voice agent built into Quo (formerly OpenPhone), a business phone system, answering inbound calls day and night. It is dropped into a Quo call flow, where it answers questions, takes messages, texts callers and transfers to staff.All answers for Sona by Quo |
| Checked | KalyvoxOctober 14, 2026 | Sona by QuoOctober 14, 2026 |
Costs are for 100 or 500 calls a month of 2½ minutes each, on the cheapest public plan. How we price