Smith.ai gives US firms a flexible AI-plus-human answering desk; OneBookPlus gives Australian businesses an AI receptionist that books the job, captures the lead, and lives inside the platform you already run on.
TL;DR
Smith.ai A US/North-America virtual-receptionist service: AI answers with optional handoff to 500+ live human agents, plus a 100%-human plan. Real booking via Calendly and native HubSpot, Salesforce, Clio and Zapier integrations. AI Receptionist starts at $95/mo (as published) with transparent per-call pricing, but is English + Spanish only and has no published Australian phone numbers or data residency.
OneBookPlus An Australian AI receptionist that answers calls and SMS 24/7 with natural neural voices in English plus 10+ languages, books and reschedules straight into your OneBookPlus calendar, captures callers as leads, and offers live human take-over to your mobile. Flat $49/mo inc. GST (requires AI Companion $25/mo), a free Australian number included, AU-hosted in AWS Sydney, with no per-minute or per-call metering.
Who wins where: Choose Smith.ai for its mature AI-plus-live-human hybrid, its deep professional-services integration catalogue and transparent per-call billing. Choose OneBookPlus if you are an Australian business that wants a flat-fee receptionist that books into your own calendar, speaks 10+ languages, includes an Australian number, and is hosted in Australia.
Key takeaways
5Side by side
The capabilities that matter when you’re choosing how your phone gets answered. Competitor cells link to the page that substantiates (or fails to substantiate) the claim.
| Category | Feature | OneBookPlus | Smith.ai |
|---|---|---|---|
| Answering | 24/7 AI call answering | Yes | Yes |
| Answers inbound SMS as well as calls | Yes | Not documented | |
| Booking | Books and reschedules into your calendar | Yes, native OneBookPlus calendar | Via Calendly + CRM [src] |
| Phone number | Australian phone number included | Yes, free AU number | No published AU numbers |
| Languages | Multilingual answering | English + 10 more | English + Spanish [src] |
| Escalation | Live human take-over | To owner's mobile, no per-call fee | 500+ agents, $3/call [src] |
| Tracking | Built-in call tracking / attribution | Per-number + UTM | Not documented |
| Platform | All-in-one business platform | Yes, full suite | Receptionist only |
| Residency | Australian presence / data residency | Yes, AWS Sydney | No published AU residency |
| Pricing | Pricing model | Flat $49/mo, no metering | Per-call, from $95/mo [src] |
| Insights | Transcripts + sentiment analysis | Text transcripts + sentiment | Not documented |
| Starting price (AUD, inc. GST) | OneBookPlus AI Receptionist | Smith.ai AI Receptionist | |
| Flat $49/mo inc. GST (requires AI Companion $25/mo); free Australian number; AU-hosted in AWS Sydney; capabilities per the OneBookPlus product. | Prices and features as published at smith.ai/pricing/ai-receptionist and smith.ai; subject to change. |
Where Smith.ai wins
Smith.ai is a mature, well-respected answering service and its hybrid model is a genuine strength: when its AI reaches its limit, the call can hand off to one of 500+ live North-American human agents, which suits firms that want a real person on complex or high-stakes calls. Its booking is deep and proven through Calendly plus native HubSpot, Salesforce and Clio integrations and Zapier's 7000+ apps, making it a strong fit for legal and professional-services teams already running those tools. Its AI Receptionist entry price of $95/mo (as published) is low, and its per-call pricing, with $2.40/call overage and $3/call live-agent handoff, is transparent and predictable for low-to-moderate call volumes. OneBookPlus does not offer a network of live human agents, and Smith.ai's integration catalogue is broader than OneBookPlus's webhook and Zapier-ready approach.
Where the OneBookPlus AI Receptionist wins
OneBookPlus includes a free Australian phone number (with port-in and toll-free 1800 options), is hosted in AWS Sydney, and builds Australian recording-consent and AI disclosure into the greeting. Smith.ai has no published Australian phone numbers or AU data residency. If your callers and your obligations are Australian, that difference matters.
OneBookPlus is a flat $49/mo inc. GST (alongside AI Companion at $25/mo), and extra conversations are simple top-ups rather than a running per-call tally. Smith.ai's AI Receptionist starts at $95/mo and adds $2.40/call overage plus $3/call for live-agent handoff (as published), so costs climb with call volume.
OneBookPlus answers in English plus 10+ languages through a simple press-1 menu, books straight into your own OneBookPlus calendar, captures callers as leads, recognises returning callers, and surfaces text transcripts and per-conversation sentiment in Insights. Smith.ai answers in English and Spanish only and operates as a standalone receptionist rather than an all-in-one platform.
Pricing, normalised
OneBookPlus AI Receptionist is a flat $49/mo inc. GST and requires AI Companion at $25/mo; extra conversations are simple top-ups with no per-minute or per-call metering. Smith.ai prices below are as published and subject to change.
OneBookPlus AI Receptionist
All AUD, inc. GST. See plans on /pricing.
Smith.ai
Smith.ai AI Receptionist pricing as published at smith.ai/pricing/ai-receptionist; per-call overage and live-agent handoff fees apply. Human Virtual Receptionist plan prices are not quoted as they are not verified here. smith.ai/pricing/ai-receptionist
FAQ
Smith.ai's AI-plus-live-human hybrid is genuinely strong: it can hand complex calls to one of 500+ live North-American agents, which suits firms that want a real person on high-stakes calls. It also has a deeper integration catalogue, with native HubSpot, Salesforce and Clio plus Zapier's 7000+ apps and Calendly booking, and a low published AI entry price of $95/mo. OneBookPlus does not offer a live human agent network.
Yes. OneBookPlus includes a free Australian phone number, with port-in and toll-free 1800 options (a small carrier fee applies to 1800). Calls and data are hosted in AWS Sydney, and Australian recording-consent and AI disclosure are built into the greeting. Smith.ai has no published Australian phone numbers or AU data residency.
It books and reschedules appointments straight into your OneBookPlus calendar, then texts the caller a confirmation and a self-service reschedule link. It also captures the caller as a lead in contacts and recognises returning callers by their phone number. Smith.ai also books genuinely, via Calendly plus native HubSpot, Salesforce and Clio integrations.
OneBookPlus is a flat $49/mo inc. GST and requires AI Companion at $25/mo, with extra conversations as simple top-ups and no per-minute or per-call metering. Smith.ai's AI Receptionist starts at $95/mo (as published), with $2.40/call overage and $3/call for live-agent handoff, so your bill scales with call volume.
English plus 10+ languages, including Spanish, French, German, Italian, Portuguese, Mandarin, Hindi, Arabic, Japanese and Korean, selected through a simple press-1 IVR menu with a default voice per language. Smith.ai answers in English and Spanish only.
No. OneBookPlus provides full text transcripts with outcomes, detected intent, a summary and per-conversation sentiment, but it does not record audio. Its attribution is per-number campaign tagging plus web-to-call UTM passthrough, not keyword-level attribution or dynamic number insertion, and it does not include lead scoring. If audio recording or keyword-level attribution is essential, weigh that in your decision.
Answer every call and text 24/7 in 10+ languages, book straight into your calendar, and keep it all in Australia for a flat $49/mo inc. GST, with a free Australian number included.
Free AU number included · 14-day trial · Cancel anytime
About this comparison
Feature claims about OneBookPlus reflect what is shipping today on onebookplus.com.au. Smith.ai pricing and feature claims were last verified against Smith.ai’s public Australian product pages on the date below; vendor pricing changes frequently, so check the Smith.ai website for your specific situation before making a decision.
Disclosure: OneBookPlus publishes this comparison and stands to benefit if you switch. We aim to compare like-for-like on capability and Australian tax compliance — if you spot something out of date, email hello@onebookplus.com.au and we’ll review it.
About the author
Founder & CEO, OneBookPlus
Bishal has over a decade of experience in digital marketing, web development, and small business consulting across Australia. Bishal regularly assists Australian small to medium businesses with software stack consolidation — including the trade-offs of moving from Smith.ai to an integrated platform. The comparison above is informed by direct migration experience, not a single read of the Smith.ai marketing site.
Last reviewed and updated: May 2026 by Bishal Shrestha