Synthflow alternative

A Synthflow alternative without a $30,000 contract

Synthflow now sells enterprise voice AI contracts. Calendeur gives small and mid-size businesses an AI phone agent connected to scheduling and a CRM, on a monthly plan.

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Comparison reviewed October 2026.

Calendeur vs Synthflow at a glance

Feature	Calendeur	Synthflow
Free plan	14-day trial
Booking pages and calendar sync
Round robin and team scheduling	Growth
Routing forms	Growth
AI phone agent that answers calls and books	Growth (250 min/mo)
Outbound AI calls to a list	Growth
E-signatures	Starter
Invoices and quotes	Starter
Built-in video rooms	Starter
Built-in CRM
Paid bookings	Starter

Based on each company's public pricing and product pages, reviewed October 2026. "—" means we couldn't confirm it. Plan names show where a feature starts. Check Synthflow's site for their latest details.

Pricing

Synthflow

Enterprise contracts start at $30,000 a year.
No self-serve plan is listed.

Synthflow pricing page

Calendeur

Calendeur: 14-day free trial of Growth, no card; Starter $29/mo ($24 billed yearly); Growth $79/mo ($63 yearly) with 5 seats and 250 AI call minutes; Enterprise $199/mo ($159 yearly). Prices are per workspace, not per seat.

Full Calendeur pricing

Where Synthflow is strong

Every tool has things it does well. Here's what stood out.

High call volumes and native telephony.
Custom routing and escalation.
Integrations with CRMs and contact centres.

Where Calendeur is different

Monthly pricing

Growth is $79 a month including 250 AI call minutes.

Scheduling and CRM included

Booking pages, team scheduling and client records come with it.

When Synthflow may be the better choice

We'd rather you pick the right tool.

You run a contact centre with very high call volumes.

Questions

How much does Synthflow cost?

As of October 2026, Synthflow lists enterprise contracts starting at $30,000 a year.

Can I start small with Calendeur?

Yes. Try Growth free for 14 days, including AI calling, then pick Starter or Growth.

Try Calendeur as your Synthflow alternative

Try it free for 14 days, no credit card. Set up your booking page and AI receptionist.

Start free trial

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AI receptionist

How Calendeur's AI phone agent works.