Kalyvox vs Nova by Nelvox
The short answer
- Nova by Nelvox costs least: CA$199 (about $140) a month for 100 calls and CA$369 (about $260) for 500.
- Kalyvox has the lowest advertised price, €89 (about $100), but costs €136.50 (about $153) at 100 calls.
- Pick Nova by Nelvox if you want the lower bill or a summary by text after each call.
 Kalyvoxsmall field-service and professional teams that cannot answer the phone while workingVisit site |  Nova by Nelvoxbilingual Canadian small businesses that miss calls during rush or after hoursVisit site | |
|---|---|---|
| Cost | ||
| At 100 calls a month | Kalyvox€136.50about $153 | Nova by NelvoxCA$199about $140Lowest |
| At 500 calls a month | Kalyvox€326.50about $366 | Nova by NelvoxCA$369about $260Lowest |
| Advertised from | Kalyvox€89 (about $100) a monthabout $100 | Nova by NelvoxCA$199 (about $140) a monthabout $140 |
| The advertised plan covers | KalyvoxThe €89 (about $100) plan covers 0 of 100 calls.100 cost extra. | Nova by NelvoxThe CA$199 (about $140) plan covers all 100 calls. |
| Bills | Kalyvoxper minute | Nova by Nelvoxper minute |
| Keeps answering past your allowance | KalyvoxYesThere is no allowance to exceed: extra volume keeps billing at the same per-minute rate | Nova by NelvoxYesCalls keep being answered past the allowance |
| Free trial or plan | KalyvoxPartlySeven days free with a working assistant you can forward real calls to and phone yourself | Nova by NelvoxNoThere is no free plan or trial on your own line |
| Month to month, cancel online | KalyvoxYesMonth-to-month with no commitment | Nova by NelvoxYesAll three plans are month to month with no minimum term, cancellable whenever you want |
| On the call | ||
| Books appointments | KalyvoxYesThe assistant reads live calendar availability, offers slots and writes the event | Nova by NelvoxYesNova books during the call per the business's own rules |
| Transfers to a person | KalyvoxYesRule-based transfer by detected intent | Nova by NelvoxYesNova transfers callers to the designated person and briefs them |
| Human receptionists as backup | KalyvoxNoNo human operators sit behind the AI | Nova by NelvoxNoThe humans behind a failed call are your own team, not Nelvox agents |
| After-hours rules | KalyvoxYesAnswers 24/7 and adapts the greeting and script to your configured business hours | Nova by NelvoxYesNova answers 24/7/365 and the forwarding rule itself can differ by time |
| Urgent calls escalated | KalyvoxPartlyEscalation fires on criteria you define, by keyword transfer or SMS to the on-call contact | Nova by NelvoxYesNova listens for emergency keywords |
| Texts your callers | KalyvoxPartlyIt can text a booking link mid-call when the caller's number is a mobile | Nova by NelvoxPartlyNova texts the caller automatically to confirm an order or booking |
| Call summary by text | KalyvoxPartlyEvery call produces a structured card by notification, email or text | Nova by NelvoxYesThe business owner gets the call's details by SMS (or email) |
| Language, privacy and trying it | ||
| Languages | KalyvoxPartlyEnglish and French | Nova by NelvoxPartlyEnglish and French |
| HIPAA, with a signed BAA | KalyvoxNot stated | Nova by NelvoxNot stated |
| Hear it before you buy | KalyvoxPartlyThere is no public demo number or recorded sample call | Nova by NelvoxYesTwo live demo numbers are published: a general Nova line and a restaurant demo |
| What it connects to | ||
| Google Calendar | KalyvoxYesGoogle Calendar and Microsoft Outlook connect in one authorization | Nova by NelvoxNot stated |
| Outlook | KalyvoxYesGoogle Calendar and Microsoft Outlook connect in one authorization | Nova by NelvoxNot stated |
| Calendly | KalyvoxYesA Calendly-style link can be texted instead when no calendar is connected | Nova by NelvoxNot stated |
| Your trade’s software | KalyvoxNoThe vendor's integration inventory names only Google Calendar, Zapier and ChatGPT | Nova by NelvoxPartlyNelvox says scheduling and EMR compatibility varies by system |
| Keep your number | KalyvoxYesYou keep your existing landline or mobile number and forward it permanently, on no-answer | Nova by NelvoxYesYou keep your existing number and forward it to the dedicated Nova number |
| 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 | Nova by NelvoxNova is Nelvox's AI phone receptionist for Canadian small businesses, answering calls in French or English around the clock. Nelvox configures it for each business, takes orders, bookings and messages, and transfers calls that need a person.All answers for Nova by Nelvox |
| Checked | KalyvoxOctober 14, 2026 | Nova by NelvoxOctober 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.