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Callinzo vs Smith.ai

Smith.ai serves law firms, home services, agencies and medical offices with human receptionists and an AI tier, priced per call. Callinzo serves medical practices only, so the receptionist knows a post-op wound from a refill.

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Checked 30 September 2026

Every fact about the other product comes from its own public pages on the date shown; corrections are welcome on the contact page.

About Smith.ai.

Smith.ai offers an AI receptionist from free for 25 calls, then $150 for 75 calls, and human receptionists from $300 for 30 calls. It carries G2 (4.9, 73 reviews) and Trustpilot (341 reviews) ratings and serves many industries.

Side by side.

On	Callinzo	Smith.ai
Price	$100 per provider a month on full coverage or $50 on nights and weekends, plus $0.20 a minute of handled calls. No setup fee, no contract.	AI: free for 25 calls, then $150 per 75 calls; human: $300 per 30 calls.
A practice with 300 calls a month	Two providers: $200 plus about $130 in minutes (2.2 minutes a call): about $330.	About $600 on the AI tier at $150 per 75 calls.
Medical specificity	Specialty packs with clinician-approved screening forms and on-call paging.	General-purpose receptionists with intake scripts.
People	Hands a caller to your front desk when a person is needed.	Human receptionists on the higher tiers.
HIPAA	Minimum-necessary collection, secure links, audit trail, BAA at onboarding.	Check its HIPAA terms for the medical plan.
The bill	The bill is on the Reports screen every day of the month, line by line: providers, handled minutes, total.	Per-call plans.

Who should pick which.

Pick Smith.ai

You want human receptionists answering, with AI as a backstop.
You run a non-medical business too and want one vendor.
You want a vendor with hundreds of public reviews.

Pick Callinzo

You want a receptionist that screens with your clinicians' questions and pages the on-call.
You want medical-specific packs for your specialty.
Your volume makes per-call pricing expensive.