When Sophiie makes sense
If you want AI answering calls and booking jobs, organising schedules, preparing quotes and invoices, and managing more of the office, Sophiie is worth looking at. Its advertised Growth plan brings together far more than message taking. Those extra capabilities can justify the spend when your business uses them.
We are comparing advertised capabilities, not claiming to have independently tested Sophiie’s product or service quality.
When the smaller assistant makes sense
You might not need another system to run your whole business. You might need a caller to hear the right service information, explain the job, and leave a confirmed enquiry while you finish what you’re doing.
That is OwnStack’s Voice AI agents service. Our working example currently serves OwnStack. It captures a request, confirms the details before saving, and can pass a confirmed enquiry with a name and email to our studio contact form. It reports when a save or handoff is not confirmed rather than pretending it worked.
It does not book real appointments, guarantee callbacks, transfer calls to staff, issue binding quotes, send invoices or provide a customer CRM. A version for your business needs its own information, privacy choices, handoff and acceptance tests.
About the roughly A$400/month comparison
Sophiie’s public information page, checked 26 October 2026, lists Growth at A$399/month + GST, with an A$800 + GST one-off setup fee. It lists 500 reception minutes and 400 phone-scribe minutes per month, and 30c/minute for overage, with prices excluding GST. This is not a claim that Growth is Sophiie’s cheapest plan.
During this review, the main pricing address redirected to the homepage. The information-page figures above are a reference, not a verified current offer. Get the current Australian plan, price and inclusions in writing before deciding. Don’t assume every feature mentioned on its website is included in every plan.
OwnStack’s aim is a cheaper, simpler assistant for the essential call flow, not a full Sophiie replacement at a made-up price. There is no published OwnStack voice-agent package price yet. We quote setup, expected phone and voice-AI usage, and any support separately. Call volume, call length and integrations can change the answer.
Compare the same period of use, including setup, GST treatment, included allowances and overages. A smaller monthly bill is not automatically a lower first-year total.
What improves over time
We plan to improve OwnStack’s capabilities as we build and test them. Calendar connections, new handoffs and wider workflows are separate scope, not features you should count on today. Buy for the job the assistant can do now.
Hear it before you decide
Call 07 4429 8740 to speak with OwnStack’s AI assistant. Calls are recorded and logged; confirmed enquiries are saved. A supplied name and email may be passed to our contact form, which may email that address. Don’t share sensitive information. Standard call charges may apply.
Then tell us what your calls usually need. If a broader platform is the better fit, we’ll say so.