Alternative · Comparison
Synthflow alternative — Divine Call by DivineMind.AI
Synthflow is a no-code AI receptionist builder. Divine Call is a packaged voice agent inside a 16-agent business platform. Both promise a fast path to a working phone AI, but the commercial models differ sharply: Synthflow quotes USD 29–1,400/month plus BYO-keys for LLM, TTS and telephony — the headline per-minute rate excludes the providers that actually produce the voice. Divine Call prices the full voice stack into a single tier (€149–€4,999/month) with documented overage rates, plus nine native CRM connectors, 70+ languages through Gemini Live Audio, and five optimised DACH PBX integrations.
TL;DR — the 3 things that matter
| — | Synthflow | Divine Call |
|---|---|---|
| What it is | No-code voice AI builder | Packaged voice agent inside a 16-agent platform |
| Pricing model | Monthly plan + BYO-keys for LLM/TTS/telephony | Tiered subscription incl. LLM, TTS, STT, PBX support |
| Business ecosystem | Voice-only, CRM via HubSpot/Salesforce OAuth | Voice + CRM + Finance + Mail + Calendar + 11 more agents |
Synthflow vs Divine Call — full comparison
Both sit in the no-code-to-low-code workforce tier. The structural split is who owns the LLM/TTS/telephony bill and whether voice is a standalone product or part of a platform.
| Dimension | Synthflow | Divine Call |
|---|---|---|
| Category | No-code voice receptionist (BYO-keys option) | Packaged voice agent + 15-agent ecosystem |
| Starting price | USD 29/month (50 min) + BYO-keys | €149/month (150 min, €0.99/min overage) |
| Voice stack included | No — you bring OpenAI/ElevenLabs/Twilio keys | Yes — Gemini 3.1 Live Audio (LLM + STT + TTS), 30 HD voices included |
| Native CRM integrations | HubSpot, Salesforce via OAuth | 9 (DivineMind CRM, CCA, Salesforce, HubSpot, Quandoo, Calendly, Cal.com, Incadea, samedi) |
| PBX / SIP support | SIP-agnostic; you configure | Any SIP via custom trunk + optimised Wildix, CloudFlex, 3CX, Asterisk + UCOM |
| Languages | 5 explicit (English, Dutch, French, German, Spanish) + more via provider | 70+ via Gemini Live Audio, Greek included |
| Voice cloning | Available (separate charge) | Professional tier and above |
| Industry templates | Generic | 9 pre-built (tax advisors, law firms, medical, real estate, trades, hospitality, insurance, logistics, automotive) |
| Auto call-classification | You build the flow | Built-in: mailbox / interested / appointment / callback / transfer / not-interested |
| Business ecosystem | Voice-only | Voice + 15 other agents (CRM, Finance, Mail, Calendar, HR, Cloud, Compliance, etc.) |
| DACH compliance features | GDPR-compliant; specific DACH not published | EU AI Act transparency, GoBD audit log, UCOM native |
| Certifications | SOC 2, HIPAA, PCI DSS, GDPR | GDPR, tenant-isolated, AES-256-CBC token encryption; SOC 2 Type I on roadmap Q3 2026 |
What Synthflow does well
Honest assessment — Synthflow is a credible workforce-tier product for specific buyers.
- •Strong no-code builder for teams who want to configure the agent visually rather than through a structured UI
- •SOC 2, HIPAA and PCI DSS certifications useful for regulated US buyers
- •Unlimited AI assistants on most tiers — good for agencies managing many clients
- •BYO-keys model can be an advantage if you already have LLM/TTS/telephony contracts at scale
- •Active product development; pricing pages and features updated frequently
- •Starting price USD 29/month is genuinely accessible for single-user evaluations
What Divine Call does that Synthflow does not
The structural advantages when voice is one piece of a larger business workflow.
Full voice stack in one bill
Synthflow's USD 29/month excludes LLM, TTS, and telephony — you add OpenAI, ElevenLabs and Twilio contracts separately. Divine Call includes Gemini 3.1 Live Audio (LLM + STT + TTS) and 30 HD voices in every tier. No separate keys, no surprise bills when provider pricing changes.
Nine native CRM connectors
Synthflow reaches HubSpot and Salesforce via OAuth. Divine Call writes directly to DivineMind CRM, CCA (Austrian insurance brokers), Salesforce, HubSpot, Quandoo (hospitality), Calendly, Cal.com, Incadea (100+ automotive dealer networks) and samedi (10,000+ DACH medical practices). Automatic outcome classification included.
Voice is one of 16 agents
Synthflow answers the call. Divine Call answers, then triggers the Finance agent to draft the invoice, the Mail agent to send confirmation, the Calendar agent to book the slot, the Compliance agent to audit-log — all in the same platform, no middleware required.
70+ languages via Gemini Live
Synthflow explicitly supports 5 languages (English, Dutch, French, German, Spanish) and more via external providers. Divine Call runs 70+ languages natively through Gemini 3.1 Live Audio, including Greek (production-ready for Greek pharmacies and doctors).
DACH PBX depth
Native integrations for Wildix, CloudFlex, 3CX, Asterisk — plus UCOM for Austrian DDI sub-number provisioning and GoBD-compatible audit log. Synthflow is SIP-agnostic but does not publish DACH-specific optimisations.
Predictable tier pricing
Divine Call: Lite €149 (150 min, €0.99 overage), Starter €499 (150 min, €0.69), Business €999 (400 min, €0.59), Scale €1,999 (1,000 min, €0.49), Enterprise €4,999 (3,000 min, €0.39). No BYO-keys arithmetic to reconcile across three vendor bills.
Cost example — 5-person agency, 500 call minutes/month
Realistic SMB call volume. Public list prices from vendor pricing pages, April 2026.
A 5-person marketing agency books discovery calls and handles inbound support calls. 500 minutes of voice traffic per month across both directions. CRM is HubSpot. They do not have a dev team and cannot afford to babysit three vendor contracts.
Synthflow Pro + BYO-keys
- Synthflow Pro plan (2,000 min included)USD 375–450 / month
- OpenAI GPT-4o for the LLM (≈ 500 min × 2k tokens/min)USD 45–70 / month
- ElevenLabs TTS Starter (250k characters ≈ 500 min)USD 22 / month
- Deepgram Nova 2 STTUSD 18–25 / month
- Twilio voice minutes (500 min)USD 10–20 / month
- Voice cloning add-onUSD 99 / month
Divine Call Starter tier
- Divine Call Starter (150 min included, 5 parallel calls)€499 / month
- Overage: 350 min × €0.69€242 / month
- Gemini 3.1 Live + 30 HD voices + STTincluded
- HubSpot + Wildix + samedi native (if needed)included
At this call volume, the line-item cost is close — Synthflow ~USD 570–690, Divine Call €741 (~USD 800). The Synthflow figure hides the administrative overhead of four separate contracts (OpenAI, ElevenLabs, Deepgram, Twilio) and the reality that provider pricing changes make your monthly bill unpredictable. Divine Call is a single contract, single bill, with nine native CRM connectors and the optional step up into the full 16-agent platform later. At higher volumes (2,000+ min/month) or with multi-agent workflows, Divine Call pulls ahead decisively.
Synthflow pricing from vendor page and third-party 2026 analyses. BYO-key provider estimates at retail list prices. Divine Call prices from vendor pricing page, April 2026. VAT not included. Voice cloning pricing varies by provider; ElevenLabs Professional Voice Cloning figure shown for comparison.
Frequently asked questions
Is Synthflow the same tier as Divine Call?+
Both are workforce-tier (packaged voice agents, not developer platforms). The key difference is Synthflow uses a BYO-keys model for LLM/TTS/telephony — you sign up separately with OpenAI, ElevenLabs, Twilio, and pay those vendors directly. Divine Call includes the full voice stack in its subscription. Same category; different commercial philosophy.
Can I migrate my Synthflow setup to Divine Call?+
Partially. Your system-prompt logic and conversation flows are re-implementable in Divine Call's UI in under a day. Your phone numbers port on the same SIP trunk. Your CRM connections move from Synthflow OAuth to Divine Call native — that is actually simpler, because there is less middleware to maintain. Custom integrations built via Synthflow webhooks will need to be re-wired against Divine Call's API.
Does Divine Call really include the LLM cost?+
Yes. Divine Call runs on Gemini 3.1 Live Audio, with DivineMind.AI absorbing the LLM-compute cost as part of the subscription. Your overage rate (€0.39–€0.99/min depending on tier) covers minute-over-quota; it does not add a separate LLM bill. If Google changes Gemini pricing, we absorb it — your bill stays predictable for the contract period.
What about Synthflow's unlimited AI assistants — does Divine Call match that?+
Divine Call assistants are per-extension / per-DID. Starter tier includes 5 concurrent calls and 5 employees; Business 15; Scale 30; Enterprise unlimited. If you run an agency with 50 clients, the Enterprise tier (or white-label at 33% purchase) is the right fit — same unlimited story, but inside a tenant-isolated multi-customer model that Synthflow does not publish.
What about compliance certifications?+
Synthflow publicly lists SOC 2 Type II, HIPAA, PCI DSS, GDPR. Divine Call has GDPR compliance, EU-deployment, AES-256 token encryption, tenant isolation, and EU AI Act transparency built into the call prompt. SOC 2 Type I is on the roadmap for Q3 2026. For healthcare HIPAA specifically, Divine Call is not yet certified — if that is a hard gate for your deployment, Synthflow has the formal edge today.
Can I run Synthflow for some clients and Divine Call for others?+
Yes. They are not mutually exclusive. Many agencies run multi-vendor voice stacks during transition phases. In practice, we see teams consolidate toward one vendor within 6–9 months to reduce operational overhead — the direction of migration has been from Synthflow toward Divine Call for customers needing CRM-first integrations and DACH-specific features.
See the math for your call volume
Bring your Synthflow monthly bills plus the linked OpenAI, ElevenLabs and Twilio statements. We model the equivalent Divine Call tier in 20 minutes.