Full Circle

The best Synthflow alternatives in 2026

Synthflow is a ai receptionist: An enterprise conversational AI platform for voice agents that handle customer calls. Here are 8 alternatives, what each costs, and who each one suits.

  1. 1. Full Circle

    AI agent builder · From $39/month

    A self-serve AI agent builder where small businesses hire AI agents that learn the business and send every piece of work for approval.

    Best for: Small-business owners who want ready-to-work AI employees for content, social, leads and reviews without building workflows.

    + Chat-first: you brief an agent like a new hire, no workflow canvas − No free plan

    Full Circle vs Synthflow →

  2. 2. Intercom Fin

    AI receptionist · From $49.5/month

    An AI customer service agent that resolves support conversations, usable with Intercom or another helpdesk.

    Best for: Businesses with real support volume wanting AI resolution on top of their helpdesk.

    + Pay per resolved outcome − Per-outcome costs scale with volume

    Intercom Fin alternatives →

  3. 3. Tidio (Lyro)

    AI receptionist · Free plan; paid from $24.17/month

    A live chat and customer service platform with the Lyro AI agent.

    Best for: Small online stores and businesses wanting chat plus an AI agent.

    + Free plan − Lyro conversations billed separately

    Tidio (Lyro) alternatives →

  4. 4. Smith.ai

    AI receptionist · Free plan; paid from $150/month

    Answering service offering an AI receptionist and live human receptionists.

    Best for: Service businesses and law firms needing calls answered 24/7.

    + Free AI tier to test − Per-call pricing; costs rise with call volume

    Smith.ai alternatives →

  5. 5. Dialzara

    AI receptionist · From $29/month

    An AI phone receptionist for small businesses.

    Best for: Small businesses wanting an affordable AI phone answering service.

    + Low entry price − Minute caps with per-minute overage ($0.40-$0.48)

    Dialzara alternatives →

  6. 6. Bland AI

    AI receptionist · Free plan; paid from $0/month

    A voice AI platform for building and running AI phone agents.

    Best for: Developers and technical teams building inbound or outbound phone agents.

    + Free Start tier with an inbound number − Developer-oriented; building agents needs technical setup

    Bland AI alternatives →

  7. 7. Retell AI

    AI receptionist · From $0/month

    A platform for building voice and chat AI agents for phone calls and messaging.

    Best for: Developers and agencies building phone agents who want to choose their own LLM and voice.

    + Choice of LLMs from OpenAI, Anthropic and Google, or a custom LLM − Per-minute cost varies with chosen LLM and voice

    Retell AI alternatives →

  8. 8. Goodcall

    AI receptionist · From $79/month

    An AI phone agent that answers calls for small and local businesses.

    Best for: Local service businesses that want calls answered and booked without hiring.

    + Free demo agent to build and test before paying − Starter limited to 1 team member and 30-day call history

    Goodcall alternatives →

At a glance

FeatureSynthflowFull CircleIntercom FinTidio (Lyro)
What it isAn enterprise conversational AI platform for voice agents that handle customer calls.A self-serve AI agent builder where small businesses hire AI agents that learn the business and send every piece of work for approval.An AI customer service agent that resolves support conversations, usable with Intercom or another helpdesk.A live chat and customer service platform with the Lyro AI agent.
TypeAI receptionistAI agent builderAI receptionistAI receptionist
PriceSee vendor pricingFrom $39/monthFrom $49.5/monthFree plan; paid from $24.17/month
Free planNoNoNoYes
Pricing notesSold as an annual enterprise agreement scoped to call volume, telephony, integrations and security; the pricing page says there is no free plan, no trial and no per-minute rate.Starter $39/mo (1 agent, 800 credits), Pro $99/mo (3 agents, 2,200 credits), Business $249/mo (10 agents, 6,000 credits); hard monthly limits; extra credits $15; 2 months free yearly$0.99 per outcome with a 50-outcome monthly minimum when used with another helpdesk; with Intercom helpdesk from $0.99/outcome + $19/seat/mo. Copilot add-on $35/user/mo.Free $0. Starter $24.17/mo (annual, 100 billable conversations, 50 one-off Lyro conversations). Growth from $49.17/mo; Plus from $300/mo. Lyro standalone from $32.50/mo (50 Lyro conversations). 7-day trials.
Best forMid-market and enterprise teams deploying AI voice agents for customer service and appointment calls.Small-business owners who want ready-to-work AI employees for content, social, leads and reviews without building workflows.Businesses with real support volume wanting AI resolution on top of their helpdesk.Small online stores and businesses wanting chat plus an AI agent.
Technical skill neededSome technical skillNoneLowLow
AI modelNot statedAnthropic ClaudeNot statedNot stated

Frequently asked questions

What is the best alternative to Synthflow?

It depends on the job. Full Circle suits small-business owners who want ready-to-work AI employees for content, social, leads and reviews without building workflows; Intercom Fin suits businesses with real support volume wanting AI resolution on top of their helpdesk; Tidio (Lyro) suits small online stores and businesses wanting chat plus an AI agent.

Is there a free alternative to Synthflow?

Tidio (Lyro), Smith.ai, Bland AI have a free plan.

How much does Synthflow cost?

See vendor pricing. Sold as an annual enterprise agreement scoped to call volume, telephony, integrations and security; the pricing page says there is no free plan, no trial and no per-minute rate.

Sources

Facts were checked against each vendor's own pages on 2026-11-01. Pricing changes often; confirm on the vendor's site before you buy.