Johnni is an Australian-made AI voice receptionist built for tradies — it answers calls 24/7 in an Australian accent and books jobs out into ServiceM8, Simpro and your calendar, from a published $99/mo. The OneBookPlus AI Receptionist books straight into the same calendar, CRM and invoicing you already run on — for an effective ~$74/mo ($49 base + AI Companion $25) with no setup fee and no per-minute metering.
TL;DR
Johnni An Australian-made (Brisbane-built) AI voice receptionist purpose-built for trades and service businesses: 24/7 AI call answering in Australian-accent voices, job and appointment booking, call recording, transcription and summaries, SMS and email handling, outbound calls, anti-interrupt speech handling, and an emotion-trigger escalation that transfers an upset caller to a real human. It integrates out to ServiceM8, Simpro, ServiceTitan, Aroflo, Xero, HubSpot, Zoho, Google Calendar and more, dropping captured jobs into your ServiceM8 calendar. Johnni publishes a $99/mo entry plan on its homepage, in two tiers — MINI Johnni (5 voices, 10 concurrent calls) and Advanced Johnni (5 premium voices, 20 concurrent calls) — with a 30-day free trial (see johnni.ai).
OneBookPlus An Australian AI receptionist that answers calls and SMS 24/7 in English plus 10+ languages, books and reschedules straight into your own 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 — free on the Growth plan), a free Australian number included, AU-hosted in AWS Sydney, with no setup fee and no per-minute or per-call metering.
Who wins where: Both are Australian-made, so this isn't an AU-vs-US call. Choose Johnni if you're standardised on ServiceM8 (or Simpro/ServiceTitan) and want a dedicated, trades-tuned answering layer with Australian-accent voices and audio call recordings that bolts onto that job software. Choose OneBookPlus if you'd rather the receptionist live INSIDE the platform that already quotes, invoices and CRMs your customers — flat-fee, no setup fee, booking into one shared calendar (and lead, quote and invoice record) instead of syncing into a separate job tool.
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 | Johnni |
|---|---|---|---|
| Answering | 24/7 AI call answering | Yes | Yes |
| Answers inbound SMS as well as calls | Yes | SMS + email handling (documented) [src] | |
| Australian-accent voices | Multi-voice | Australian male/female voices [src] | |
| Bookings | Books into a calendar that's already part of your platform | Native calendar | Books out to ServiceM8 / Simpro / Google Calendar [src] |
| All-in-one | Receptionist lives inside your CRM, calendar & invoicing | Yes | Syncs into your job software (or its own dashboard) [src] |
| Trade stack | ServiceM8 / Simpro integration | Roadmap | ServiceM8, Simpro, ServiceTitan, Aroflo [src] |
| Languages | Multilingual answering | English + 10+ | 40+ languages [src] |
| Phone number | Free Australian number included | Yes | Use your existing number [src] |
| Live transfer | Live human take-over to your phone | Push-to-takeover | Emotion-trigger escalation to a human [src] |
| Records | Call records | Text transcripts | Call recordings + transcripts + summaries [src] |
| Pricing | Pricing model | Flat $49/mo + $25 AI Companion (~$74/mo) | $99/mo published (MINI / Advanced tiers) [src] |
| Starting price (AUD, inc. GST) | $49/mo inc. GST | $99/mo published | |
| Flat, self-serve, no setup fee, no per-minute metering. Requires AI Companion ($25/mo). Free AU number included. | Published $99/mo entry plan in two tiers (MINI and Advanced), with a 30-day free trial. |
Where Johnni wins
Johnni is a genuinely strong, Australian-made product, and it deserves credit. It's Brisbane-built and purpose-tuned for trades — Australian-accent voices (male and female), trained on local jargon, with an answering engine that's clearly designed for a busy tradie's phone. As a dedicated receptionist it goes wide: 24/7 call answering, audio call recordings plus transcripts and summaries, SMS and email handling, outbound calls, anti-interrupt speech handling, and a thoughtful emotion-trigger escalation that hands an upset caller to a real human. Its real strength is the trade stack: deep integrations with ServiceM8, Simpro, ServiceTitan and Aroflo, dropping captured jobs — caller details, job type and address — straight into your ServiceM8 calendar (it cites '99% accuracy'). If your business is already standardised on ServiceM8 or Simpro and you want a focused, trades-native answering layer with audio recordings to sit on top of it, Johnni is a credible, AU-built choice. If audio call recordings or a native ServiceM8/Simpro write-back are essential to you today, Johnni is the better fit.
Where the OneBookPlus AI Receptionist wins
Johnni books out into ServiceM8, Simpro or your calendar — so the captured job lives in Johnni and again in your job software, kept in step by an integration. The OneBookPlus receptionist books straight into the same calendar, captures the caller as a lead in the same CRM, and that record is the one your quotes, invoices, jobs and BAS already run on. There's no second system to reconcile and no integration to break when you're flat out on a job site.
Johnni publishes a clear $99/mo entry plan (two tiers, MINI and Advanced) — fair and transparent. The OneBookPlus AI Receptionist is a flat $49/mo inc. GST add-on you switch on yourself from the app, on top of an AI Companion at $25/mo — about $74/mo effective, a little below Johnni's $99, with no setup fee, no per-minute or per-call metering, and extra conversations as simple top-ups. The difference isn't a big price gap; it's that you're adding answering to the same OneBookPlus subscription that already runs your bookings, CRM and invoicing, with a free Australian number and AU hosting in AWS Sydney included.
Because the receptionist sits inside the same OneBookPlus that handles your bookings, CRM, invoicing and accounting, every transcript, detected intent and outcome lands in your Insights dashboard alongside the rest of the business — the booking it created, the lead it captured, the quote and invoice that follow. With a dedicated answering layer like Johnni, that call data lives in the answering tool and then has to be pushed back into your job software, so the picture of a customer is split across two systems instead of being one record from first ring to paid invoice.
Pricing, normalised
The two prices are broadly comparable. OneBookPlus is a flat $49/mo inc. GST (requires AI Companion $25/mo, so about $74/mo effective) you turn on yourself, with no setup fee and extra conversations as simple top-ups. Johnni publishes a $99/mo entry plan on its homepage in two tiers — MINI Johnni (5 voices, 10 concurrent calls) and Advanced Johnni (5 premium voices, 20 concurrent calls). Confirm current figures directly with Johnni.
OneBookPlus AI Receptionist
All AUD, inc. GST. See plans on /pricing.
Johnni
Johnni publishes a $99/mo entry plan on its homepage in two tiers (MINI / Advanced). The figures above reflect what's documented on johnni.ai and are subject to change; confirm at johnni.ai
FAQ
Both are Australian-made. Johnni is Brisbane-built ('Made with ❤️ in Brisbane, Australia') and markets itself as a leading Australian AI voice receptionist, purpose-tuned for trades with Australian-accent voices (see johnni.ai). OneBookPlus is Australian-built and AU-hosted in AWS Sydney, and the AI Receptionist ships with a free Australian phone number and a greeting that builds in Australian recording-consent and AI disclosure. So this isn't an onshore-vs-offshore comparison — it's two Australian receptionists built in two different shapes.
Shape. Johnni is a standalone answering layer that books captured jobs out into your ServiceM8, Simpro or calendar (or its own free dashboard). The OneBookPlus receptionist is built into the all-in-one platform — it books straight into the same calendar, captures the caller as a lead in the same CRM, and that record is the one your quotes, invoices, jobs and BAS already use. With Johnni you run your job software plus Johnni and an integration between them; with OneBookPlus the receptionist and the business are the same system.
They're broadly comparable. OneBookPlus is a flat $49/mo inc. GST add-on (requires AI Companion at $25/mo, so about $74/mo effective) that you can switch on yourself — no setup fee, no per-minute or per-call metering, with extra conversations as simple top-ups, and a free Australian number included. Johnni publishes a $99/mo entry plan on its homepage in two tiers — MINI Johnni (5 voices, 10 concurrent calls) and Advanced Johnni (5 premium voices, 20 concurrent calls) — with a 30-day free trial. So OneBookPlus is a little lower, but the bigger difference is that it adds answering to the same subscription that already runs your bookings, CRM and invoicing.
Yes. Johnni ships audio call recordings (OneBookPlus gives text transcripts rather than audio), and it has native, trades-focused integrations with ServiceM8, Simpro, ServiceTitan and Aroflo that drop captured jobs into your ServiceM8 calendar — OneBookPlus doesn't currently write back to ServiceM8/Simpro. Johnni also has an emotion-trigger escalation that transfers an upset caller to a human. If audio recordings or a native ServiceM8/Simpro write-back are essential, Johnni is the better fit today.
Both can. The OneBookPlus receptionist books and reschedules straight into your own OneBookPlus calendar and texts the caller a confirmation and a self-service reschedule link — no separate booking tool involved. Johnni captures the job and books it out into ServiceM8, Simpro or Google Calendar, reporting it captures caller details, job types and addresses 'with 99% accuracy' (per johnni.ai). The difference is whether the booking lands in the calendar your business already runs on, or in a separate job tool that has to stay in sync with it.
Both are multilingual. OneBookPlus answers in English plus 10+ languages — Spanish, French, German, Italian, Portuguese, Mandarin, Hindi, Arabic, Japanese, Korean and more — via a simple press-1 IVR menu with a default voice per language. Johnni advertises multilingual support across 40+ languages on its homepage, so language coverage isn't where these two differ; the real difference is whether the receptionist books into the same platform that quotes and invoices your customers.
Answer every call and text and book straight into the same calendar, CRM and invoicing you already run on, on an Australian number — for an effective ~$74/mo ($49 base + AI Companion $25), no setup fee, no per-minute metering.
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. Johnni pricing and feature claims were last verified against Johnni’s public Australian product pages on the date below; vendor pricing changes frequently, so check the Johnni 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 Johnni to an integrated platform. The comparison above is informed by direct migration experience, not a single read of the Johnni marketing site.
Last reviewed and updated: June 2026 by Bishal Shrestha