OpenCall.ai vs Hey Rosie Comparison (2025)
OpenCall.ai
Starting at $0.10/ minute
OpenCall doesn’t just pick up the phone and recite a script. It listens. It understands. And most impressively, it responds like a human would—fluidly, naturally, and with purpose. I’ve heard AI agents handle insurance verification calls, navigate complex scheduling workflows, and even wait patiently on hold before transferring the call back to a medical office at exactly the right moment. This isn’t voice automation; it’s delegation.
What makes OpenCall different is how deeply it integrates into a business’s backend systems. This means it can actually do things: check calendars, update patient records, confirm appointments, and triage urgent service requests—all without a human ever lifting the receiver. It’s not just about saving time (though it does, dramatically); it’s about transforming the customer experience into something responsive, seamless, and available 24/7.
What makes OpenCall different is how deeply it integrates into a business’s backend systems. This means it can actually do things: check calendars, update patient records, confirm appointments, and triage urgent service requests—all without a human ever lifting the receiver. It’s not just about saving time (though it does, dramatically); it’s about transforming the customer experience into something responsive, seamless, and available 24/7.
Key Metrics
Latency
700 ms
Automation
76%
Integrations
2000
Onboarding
2 days
OpenCall.ai
Score
93
Latency
700 ms
Automation
76%
Integrations
2000
Onboarding
2 days
Cost
Low
HIPAA Compliant
Yes

Hey Rosie
Score
57
Latency
950 ms
Automation
60%
Integrations
1
Onboarding
1 days
Cost
Low
HIPAA Compliant
No
OpenCall.ai
OpenCall doesn’t just pick up the phone and recite a script. It listens. It understands. And most impressively, it responds like a human would—fluidly, naturally, and with purpose. I’ve heard AI agents handle insurance verification calls, navigate complex scheduling workflows, and even wait patiently on hold before transferring the call back to a medical office at exactly the right moment. This isn’t voice automation; it’s delegation.
What makes OpenCall different is how deeply it integrates into a business’s backend systems. This means it can actually do things: check calendars, update patient records, confirm appointments, and triage urgent service requests—all without a human ever lifting the receiver. It’s not just about saving time (though it does, dramatically); it’s about transforming the customer experience into something responsive, seamless, and available 24/7.
What makes OpenCall different is how deeply it integrates into a business’s backend systems. This means it can actually do things: check calendars, update patient records, confirm appointments, and triage urgent service requests—all without a human ever lifting the receiver. It’s not just about saving time (though it does, dramatically); it’s about transforming the customer experience into something responsive, seamless, and available 24/7.
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.
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 |