Synthflow Lets You Build a Voice Agent. Hello Builds It for You.
Synthflow is a no-code voice AI builder for any industry. Hello is a done-for-you Hello Voice deployment purpose-built for healthcare, with HIPAA infrastructure, native revenue capture, and 99.99% uptime. One requires your team to build it. The other is live in 10 days.
Get StartedYou Are Not Choosing Between Two Voice Agents. You Are Choosing Between Building One and Having One Built for You.
Synthflow is a no-code platform that lets anyone build AI voice agents. Drag, drop, connect, deploy. If you are a developer or agency building voice bots for e-commerce, real estate, or lead gen, it is a capable tool. But if you are a dental practice owner, a dermatology office manager, or a multi-location aesthetic group, the question is different. You do not want to build a voice agent. You want a voice agent that is already built, trained on your procedures, compliant with HIPAA, and collecting deposits by Friday.
That is the core difference. Synthflow gives you raw materials. Hello gives you a finished product. With Synthflow, you design the call flow, configure the integrations, write the prompts, test the edge cases, manage the compliance gaps, and maintain the system yourself. With Hello, a dedicated implementation team builds your Hello Voice deployment from the ground up: your procedures, your pricing, your protocols, your PMS integration, your compliance requirements. You go live in 10 days. Not 10 sprints.
The compliance gap is especially critical for healthcare. Synthflow does not specifically market HIPAA compliance or provide Business Associate Agreements. Hello executes a BAA with every healthcare client before any protected health information is processed. The infrastructure runs on strong encryption in transit and at rest, with post-quantum-ready key management with tenant isolation. If your practice handles patient data, and every practice does, this is not optional. It is the regulatory floor.
Then there is the revenue question. Synthflow agents answer calls. Hello agents collect deposits and outstanding balances during the call itself via Stripe and Square. A $12,000 rhinoplasty consultation booked at 7 PM with a $500 deposit collected is committed revenue before your office opens the next morning. No other no-code builder offers this natively, because no other builder was designed around the healthcare revenue cycle. Synthflow was designed for builders. Hello was designed for practice owners who want results, not projects.
Hello vs Synthflow: Feature Comparison
A detailed look at the capabilities healthcare practices need most.
| Capability | Hello | Synthflow |
|---|---|---|
| Built for Healthcare | Yes - purpose-built for medical practices | No - general-purpose no-code builder |
| HIPAA Infrastructure | Yes - strong encryption, tenant isolation, BAA | No - not healthcare-specific compliance |
| Business Associate Agreement | Yes - executed with every client | No |
| Runtime Compliance Scanning | Yes - Mercury scans every interaction | No - no compliance scanning |
| Encrypted Retention (6+ years) | Yes - Mercury provides HIPAA-grade audit trails | 90 days - per Synthflow transparency docs |
| Native Revenue Capture | Yes - deposits + balances via Stripe/Square | No - no payment collection during calls |
| EHR/PMS Integrations | Yes 37 EHR/PMS connectors; 200 integrations (e.g. Dentrix, Nextech, ModMed) | Limited - via Zapier/webhooks only |
| Multi-Provider Voice Failover | Yes - 99.99% uptime SLA, 3+ providers | No - single provider dependency |
| Implementation Model | Done-for-you - full build, config, optimization | Self-service (no-code builder) |
| Bilingual (English + Spanish) | Yes - native fluency | Partial - multi-language available |
| Outbound Campaigns | Yes - patient recall, reactivation | Limited - basic outbound capability |
| VIP Patient Routing | Yes - auto-detect + human transfer | No |
| Ongoing Optimization | Yes - 7-90 day optimization period | Self-managed |
| Dedicated Account Manager | Yes (Command tier) | No |
| Custom Voice Clone | Yes (Command tier) | Yes |
| Target User | Healthcare practice owners and managers | Technical builders, agencies |
| Pricing Model | Implementation-based ($7,500 - $20,000+) | Monthly subscription (from $29/mo) |
The Capabilities Synthflow Cannot Replicate
Four pillars separate enterprise-grade healthcare AI voice infrastructure from a general-purpose voice agent builder.
HIPAA Infrastructure from Day One
Synthflow is a general-purpose platform with no healthcare-specific compliance layer. Hello provides strong encryption in transit and at rest, with post-quantum-ready key management, tenant isolation, and a Business Associate Agreement executed before any protected health information is processed. If you handle patient data, this is the regulatory floor, not a feature.
Revenue Captured During the Call, Not After
Synthflow agents answer calls. Hello agents collect deposits and outstanding balances during the call itself via Stripe and Square. This is the revenue loop that no-code builders cannot close because they were not designed around the healthcare revenue cycle.
99.99% Uptime, Multi-Provider Failover
3+ voice providers with sub-second automatic failover. Synthflow runs on a single provider. See reliability.
Done-for-You in 10 Days
Hello builds, configures, tests, and launches your Hello Voice deployment. No developer resources. No technical debt. No DIY maintenance.
Bilingual Coverage (English + Spanish)
Native Spanish voice AI for your bilingual patient population. Not a translation layer. How bilingual AI receptionist works.
VIP Patient Routing
Surgical patients and high-value callers identified and routed to the right team member instantly. Not available on Synthflow.
Outbound Reactivation Campaigns
Proactively reach overdue patients. 2 automated campaigns per month on Intercept. See outbound.
Healthcare EHR/PMS Integrations
37 EHR/PMS connectors and 200 integrations, including Dentrix, Nextech, and ModMed. Productized directory depth, not Zapier chains. View integrations.
FAQ
Hello vs Synthflow: common questions. Everything healthcare practices need to know before choosing between Hello and Synthflow.