Rosie vs Synthflow AI
Rosie starts $2500/mo cheaper than Synthflow AI.
Both pages checked by August 19, 2026
- RosieAI only
- $0/mo
- Website Chat (add-on) plan
- AI answering service for US small businesses and home-services trades that answers calls 24/7, takes custom messages, books appointments and transfers callers to the owner's own team.
- Synthflow AIAI only
- $2500/mo
- Enterprise plan
- Enterprise voice AI platform with in-house telephony for automating inbound and outbound calls, sold through sales-scoped contracts rather than published self-serve plans, with the agent designed, tested and launched by the customer in Synthflow's Flow Designer or Prompt Builder.
Feature by feature
| Capability | Rosie | Synthflow AI |
|---|---|---|
| Live transfer | Yes | Yes |
| Books appointments | Yes | Yes |
| Text follow-up | Yes | Yes |
| Outbound calls | unstated | Yes |
| Spanish | Yes | Yes |
| Human backup | No | No |
| Call recordings | Yes | Yes |
| Transcripts | Yes | Yes |
| Spam screening | Yes | unstated |
| Custom voice | unstated | Yes |
| API | unstated | Yes |
"unstated" means the vendor doesn't claim it in their own documentation. It is not the same as no — it means nobody will put it in writing.
Rosie plans
| Plan | Published price | Includes | Over that |
|---|---|---|---|
| Professional | $49 per month | 250 min | — |
| Scale | $149 per month | 1000 min | — |
| Growth | $299 per month | 2000 min | — |
| Custom Plan | not published | — | — |
| Website Texting (add-on) | $50 per month | — | $1 per additional conversation |
| Website Chat (add-on) | Free with all plans | — | — |
Synthflow AI plans
| Plan | Published price | Includes | Over that |
|---|---|---|---|
| Enterprise | Enterprise contracts start at $30,000 annually(annual billing) | — | — |
Rosie sources
- Pricing page (plan cards, add-ons, FAQ, embedded schema.org offer data)heyrosie.com · read August 19, 2026
- AI Receptionist solution page (transfers, texting, Spanish, voices, recordings)heyrosie.com · read August 19, 2026
- Industries index (list of trades Rosie markets to)heyrosie.com · read August 19, 2026
- About pageheyrosie.com · read August 19, 2026
- Terms of Service (minute rounding, auto-upgrade on overage, 30-day subscription term, upgrade/downgrade timing, Rally Commerce, Inc. dba Rosie)heyrosie.com · read August 19, 2026
- Rosie Help Center indexheyrosie.com · read August 19, 2026
- Help Center: When will I be billed?heyrosie.com · read August 19, 2026
- Help Center: How do I cancel my account? (confirms minute overage charges on cancellation)heyrosie.com · read August 19, 2026
- Help Center: How to set up call transferring for Rosieheyrosie.com · read August 19, 2026
- Help Center: How to block spam calls to your Rosie numberheyrosie.com · read August 19, 2026
- Help Center: CRM Integrations (full CRM list, one-CRM limit, HubSpot-only recordings)heyrosie.com · read August 19, 2026
- Help Center: Scheduling Integrations (calendar list, coming-soon gaps)heyrosie.com · read August 19, 2026
- Help Center: Why can I only get a US phone number for my account?heyrosie.com · read August 19, 2026
- Shopify App Store listing (first-party marketplace: same $49/$149/$299 tiers, 7-day trial, developer address in Portland, OR)apps.shopify.com · read August 19, 2026
Synthflow AI sources
- Pricing page (Enterprise-only; "Enterprise contracts start at $30,000 annually"; scoping variables and contract inclusions)synthflow.ai · read August 19, 2026
- Homepage (positioning, target industries, free-trial FAQ answer and PAYG statement)synthflow.ai · read August 19, 2026
- Docs: Billing Overview ("Synthflow uses sales-led pricing", legacy billing labels, do-not-quote-from-docs warning)docs.synthflow.ai · read August 19, 2026
- Docs: Usage and Billing (per-second measurement, minute aggregation with carryover, flat 5s for no-answer, call-state billing table, chat at 5 AI messages per minute, allowances and carryover)docs.synthflow.ai · read August 19, 2026
- Docs: Concurrency (concurrency vs CAPS, "Scoped with Synthflow", no published defaults)docs.synthflow.ai · read August 19, 2026
- Docs: Languages (transcribers Deepgram and Synthflow STT, full supported-language list)docs.synthflow.ai · read August 19, 2026
- Docs: Integrations overview (GoHighLevel, Salesforce, HubSpot, Zendesk, Freshworks, Cal.com, Stripe, WhatsApp, ElevenLabs, Zapier, Make, Bubble, OpenAI/Anthropic/Azure BYOK, telephony)docs.synthflow.ai · read August 19, 2026
- Docs: Logs (call recordings and transcripts, live monitoring, CSV export, opt-out of saving recordings)docs.synthflow.ai · read August 19, 2026
- Docs: Getting started (BELL framework — the customer builds, evaluates and launches)docs.synthflow.ai · read August 19, 2026
- Docs: Custom pricing / reseller plans (Stripe reselling deprecated September 15, 2026; configurable subaccount plans, included minutes, concurrency caps, trials up to 200 minutes)docs.synthflow.ai · read August 19, 2026
- Docs index (call transfer TEL/SIP/dynamic, real-time booking, post-call SMS, in-call SMS/WhatsApp messaging, campaigns/batch calling, IVR handling, telephony and SIP integrations, Platform API)docs.synthflow.ai · read August 19, 2026
- Imprint (operating entity AgentFlow AI GmbH, Kurfürstendamm 15, 10719 Berlin; HRB 255004 B)docs.synthflow.ai · read August 19, 2026