Retell AI vs Sonalyx
Retell AI
retellai.comSonalyx
sonalyx.comSide by side
| Figure | Retell AI | Sonalyx |
|---|---|---|
| Price from | $0.07/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 4 |
| Spec score · Voicebot Software | 7.9 (#10) | 7.7 (#15) |
| Deployment | Agents can be deployed for inbound calls, outbound campaigns, web, and SMS, including through a website widget. | The site says customers can use their own telephony carrier and numbers or Sonalyx’s, with SIP failover, REST, webhooks, and VPC or on-premise deployment where required. |
| Integrations | The integrations directory lists Twilio, GoHighLevel, HubSpot, Salesforce, Zapier, Make, n8n, and Google Workspace. | The site lists Salesforce, HubSpot, Dynamics 365, SAP, Zendesk, Intercom, Zoho, Shopify, Twilio, WhatsApp, Slack, Microsoft Teams, Google Calendar, Calendly, Zapier and its own API. |
| Product | Retell describes its platform as a tool to build, deploy, and manage AI voice agents for phone calls. | Sonalyx provides autonomous voice agents for customer service, sales and operations that handle inbound and outbound calls and can access business systems and execute actions. |
| Security | The homepage states that Retell is compliant with HIPAA, SOC 2 Type II, GDPR, and ISO 27001. | The site describes encryption in transit and at rest, isolated tenants, secret management, consent capture, retention policies, redaction and right-to-erasure flows. |
Plans
Retell AI
- Pay as you go$0.07 a month
- EnterprisePriced on request
- Pay as you goFree
- Enterprise PlanPriced on request
Sonalyx
- FreeFree
- Starter€200, paid once
- Professional€1,200, paid once
- EnterprisePriced on request
In their own words
Retell AI
Retell AI is a platform for building, deploying and managing AI agents that handle phone calls. Agents can also work through web and in-app chat, SMS and custom API-based communication. A visual canvas supports call flows with functions, integrations, transfers, DTMF, SMS and custom logic. Teams can simulate scenarios, turn production calls into regression tests and QA calls. Deployment options include inbound calls, outbound campaigns, web and SMS, including a website widget. Call handling includes IVR navigation, live monitoring and transfer or takeover by a person. The integrations directory names Twilio, GoHighLevel, HubSpot, Salesforce, Zapier, Make, n8n and Google Workspace. The homepage lists HIPAA, SOC 2 Type II, GDPR and ISO 27001 compliance, along with SSO, personal information redaction and module-level role permissions. Enterprise on-premise deployment is available within a customer’s infrastructure. Pay as you go is listed at $0.07 a month, with voice agents priced at $0.07-$0.31 per minute, $10 in free credits and 20 concurrent calls included. Enterprise pricing is custom.