Hey Rosie vs Synthflow AI Comparison (2025)
Hey Rosie
Starting at $49/mo (250 min) + $0.25/min
Rosie provides an entry‑level virtual receptionist service aimed at small teams. Setup is straightforward—connect a phone line and run a short wizard that draws context from your website or Google Business profile. The base plan costs $49 for 250 minutes, with overage billed at $0.25 per minute; higher‑priced tiers add live call transfers and more routing controls.
The agent speaks English and Spanish, can handle simultaneous calls, and sends a text or email summary after each conversation. Workflows beyond basic triage generally run through a single native integration (Zapier), which may suffice for simple CRM updates but can feel restrictive for more complex processes. Spam calls are detected quickly, though the minutes still count toward usage. Overall, Rosie is suitable for basic call answering and lead capture, but teams that require deeper scheduling, compliance safeguards, or custom integrations may need to look elsewhere.
The agent speaks English and Spanish, can handle simultaneous calls, and sends a text or email summary after each conversation. Workflows beyond basic triage generally run through a single native integration (Zapier), which may suffice for simple CRM updates but can feel restrictive for more complex processes. Spam calls are detected quickly, though the minutes still count toward usage. Overall, Rosie is suitable for basic call answering and lead capture, but teams that require deeper scheduling, compliance safeguards, or custom integrations may need to look elsewhere.
Key Metrics
Latency
950 ms
Automation
60%
Integrations
1
Onboarding
1 days
Hey Rosie
Score
57
Latency
950 ms
Automation
60%
Integrations
1
Onboarding
1 days
Cost
Low
HIPAA Compliant
No
Synthflow AI
Score
20
Latency
2300 ms
Automation
45%
Integrations
20
Onboarding
1 days
Cost
Low
HIPAA Compliant
No
Hey Rosie
Rosie provides an entry‑level virtual receptionist service aimed at small teams. Setup is straightforward—connect a phone line and run a short wizard that draws context from your website or Google Business profile. The base plan costs $49 for 250 minutes, with overage billed at $0.25 per minute; higher‑priced tiers add live call transfers and more routing controls.
The agent speaks English and Spanish, can handle simultaneous calls, and sends a text or email summary after each conversation. Workflows beyond basic triage generally run through a single native integration (Zapier), which may suffice for simple CRM updates but can feel restrictive for more complex processes. Spam calls are detected quickly, though the minutes still count toward usage. Overall, Rosie is suitable for basic call answering and lead capture, but teams that require deeper scheduling, compliance safeguards, or custom integrations may need to look elsewhere.
The agent speaks English and Spanish, can handle simultaneous calls, and sends a text or email summary after each conversation. Workflows beyond basic triage generally run through a single native integration (Zapier), which may suffice for simple CRM updates but can feel restrictive for more complex processes. Spam calls are detected quickly, though the minutes still count toward usage. Overall, Rosie is suitable for basic call answering and lead capture, but teams that require deeper scheduling, compliance safeguards, or custom integrations may need to look elsewhere.
Synthflow AI
No‑code platform to build voice AI agents for SMEs.
Full Comparison
| Vendor | Score | Latency | Automation | Integrations | Cost | Action |
|---|---|---|---|---|---|---|
 OpenCall.ai $0.10/ minute | 93 | 700 ms | 76% | 2000 | Low | |
 Retell.ai $0.07 – 0.08 /min | 82 | 950 ms | 55% | 25 | Low | |
 Sierra AI $2 per successful outcome | 79 | 800 ms | 60% | 30 | Low | |
 PolyAI $0.25 /min (example case study) | 67 | 1700 ms | 72% | 25 | Medium | |
 Bland AI $0.09/min | 66 | 1100 ms | 50% | 15 | Low | |
 Phonely $396 (yearly) | 61 | 1200 ms | 52% | 17 | Medium | |
Hey Rosie $49/mo (250 min) + $0.25/min | 57 | 950 ms | 60% | 1 | Low | |
 Smith.ai $3.25 /call (Starter 30 calls @ $97.50/mo) | 55 | 2300 ms | 40% | 30 | Medium | |
 8x8 XCaaS $60 per seat per month | 49 | 250 ms | 50% | 15 | Medium | |
 CloudTalk $25 – $50 /user/mo | 47 | 23 ms | 40% | 500 | Low | |
Synthflow AI $0.08 /min (Growth) | 20 | 2300 ms | 45% | 20 | Low | |
 Balto.ai $100 / seat /mo | 12 | 100 ms | 0% | 40 | High |