Compare · Retell AI
Retell ships a developer-first voice API; Countertone ships a receptionist who already knows your CRM.
Both run voice agents on the public phone network, but they’re not pointed at the same buyer. The rows below go per-dimension across segments, telephony, AI-disclosure posture, pricing, and integrations — so a solo operator, a clinic, or a contractor can see why the two products make sense for very different teams.
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Per-dimension comparison
Five dimensions, two columns, one decision.
Each card below answers one question a small-business buyer actually asks — what Retell ships, what Countertone ships, and what it means for the call you’re trying not to lose.
Countertone
Solo operators and small professional offices — single-location dental and medical clinics, 1–30 truck HVAC and home-services contractors, four-attorney legal and accounting practices, and regional real estate teams.
Retell
Developer-first voice AI API aimed at engineering teams wiring custom agents into their own product — not an out-of-the-shelf answering service for solo operators, clinics, or small contractors.
Why it matters: If you’re a solo operator or a small office, "developer-first API" usually means a project, not a service. Countertone ships a flow tuned to your vertical in days; Retell hands you primitives and expects your team to assemble the product.
Countertone
Carrier-grade numbers with STIR/SHAKEN attestation and TCR/10DLC registration managed for you. Multi-number, multi-flow routing with after-hours on-call by zip and time of day.
Retell
Carrier numbers provisioned through Twilio under the hood. STIR/SHAKEN attestation and 10DLC registration are inherited from Twilio, but the integrator owns the setup, the registration brand, and the trust-product bundle.
Why it matters: Phone numbers, attestation, and 10DLC registration look like plumbing until a call fails attestation or a campaign gets filtered. On Retell you own the carrier setup; on Countertone it is run for you as part of onboarding.
Countertone
Recording-consent language included on every flow; HIPAA-aware transcripts with no LLM-training posture; state-by-state AI-disclosure language on the Scale tier.
Retell
AI-disclosure and recording-consent lines are configurable on the prompt, but the legal copy and state-by-state language are the integrator’s responsibility — Retell ships the tool, not the wording.
Why it matters: AI disclosure and recording-consent wording are tightly regulated state by state. Picking the right lines is not something you want to leave to the integrator that built your flow last quarter.
Countertone
Bounded by minutes, not seats. Three published tiers: Starter ($249 / 500 min), Growth ($549 / 1,500 min), Scale (custom / 5,000+ min). No per-call surcharges on top.
Retell
Per-minute usage pricing plus a Twilio (or equivalent carrier) pass-through on top of every call. No published monthly tiers and no bundled minutes; spend scales linearly with call volume and telephony cost.
Why it matters: Per-minute plus carrier pass-through pricing with no published tier means you cannot quote a customer a flat number. Bounded minute tiers with no per-call surcharge are easier to budget against.
Countertone
Writes into ServiceTitan and Jobber for home services; Dentrix, Eaglesoft, and Open Dental for medical and dental; HubSpot and Salesforce for real estate and general SMB. CRM or scheduler on every tier.
Retell
API-first and webhook-first. There are no first-party ServiceTitan, Jobber, Dentrix, HubSpot, or Salesforce connectors — every CRM, scheduler, or vertical-system write is an integrator-built project, scoped and mainlined by the customer.
Why it matters: A voice agent that doesn’t write into your scheduler or CRM is just a fancy voicemail. First-party connectors for ServiceTitan, Jobber, Dentrix, HubSpot, and Salesforce matter for a clinic or contractor — not for a voice AI hobby project.
Still weighing options?
See how Countertone stacks up on Retell’s dimensions for your call flow.
Bring a recording of the call you’re trying not to lose and the system you want it to write into. We’ll show you which dimensions actually swing the decision for a small office and where Retell’s developer-first posture shifts the trade-offs.
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See how Countertone stacks up on Retell’s dimensions.