StackAI vs Voiceflow
StackAI uniquely has 9 features · Voiceflow uniquely has 6 features.
| StackAI | Voiceflow | |
|---|---|---|
| Company | ||
| Founded | 2022 | 2019 |
| HQ | San Francisco, USA | Toronto, Canada |
| AI model | LLM Agnostic (OpenAI, Anthropic Claude, and others) | Multi-model (OpenAI, Anthropic, Google, custom LLMs + proprietary Voiceflow Core) |
| User base | — | 200K+ users, 4K+ customers |
| Platforms | Web, Chrome Extension | Web, API (Mobile/Custom Interfaces) |
| Languages | English primarily, multilingual via integrated LLMs | Multilingual (multilingual support confirmed via Turo case study) |
| Pricing | ||
| Pricing model | Freemium | Freemium |
| Free plan | Yes | Yes — free tier available (Sign up for free offered on homepage) |
| Free trial | No | Yes |
| Starting price | $0/mo — Free | — |
| Enterprise | Custom/mo | Custom — contact sales |
| All plans | Free$0/moEnterpriseCustom | — |
| Positioning | ||
| Best for | Enterprise IT teams and regulated industries building secure agentic AI workflows | Agencies, partners, and businesses deploying AI agents across customer experience channels |
| Differentiator | Enterprise-grade governed agentic workflow platform with on-prem/VPC deployment, HIPAA/SOC2/ISO27001 compliance, and human-in-the-loop controls purpose-built for regulated industries | Multi-client workspace management with white-labeling, client handoff tools, real-time observability, and support for all major model providers |
| Competitors | n8n, Zapier, Make, Relevance AI, Vertex AI Agent Builder | Botpress, Dialogflow, Rasa, Ada, Intercom Fin, Kore.ai |
| Features | ||
| Access Control | ✓ | — |
| Dedicated Infrastructure | ✓ | — |
| Multi Client Workspace Management | — | ✓ |
| On Prem Deployment | ✓ | — |
| Real Time Performance Analytics | — | ✓ |
| Soc 2, Hipaa & Gdpr Compliance | ✓ | — |
| Sso (Single Sign on) | ✓ | — |
| Team Roles and Permissions | — | ✓ |
| Usage Based Billing | — | ✓ |
| Virtual Private Cloud Deployment | ✓ | — |
| Voice and Chat Deployment | — | ✓ |
| White Labeling | — | ✓ |
| AI Agents | ✓ | ✓ |
| API Webhooks | ✓ | ✓ |
| Conditional Logic | ✓ | ✓ |
| Custom Code | ✓ | ✓ |
| Data Transform | ✓ | ✓ |
| Error Handling | ✓ | ✓ |
| Execution Logs | ✓ | ✓ |
| Human in Loop | ✓ | ✓ |
| Num Integrations | 100+ | — |
| Scheduled Runs | ✓ | — |
| Team Features | ✓ | ✓ |
| Trigger Types | REST API / Slack Bot / file upload / form input / webhook / scheduled | Webhook / API / chat widget / voice / phone / mobile |
| Visual Builder | ✓ | ✓ |
| Integrations | ||
| API Access | ✓ | ✓ |
| Google Workspace | ✓ | — |
| Key Integrations | Google Drive, Notion, Slack, REST API, web scraping | OpenAI, Anthropic, custom LLMs (bring your own model), web chat widget, phone/call centre systems |
| Openai Integration | ✓ | ✓ |
| Slack | ✓ | — |
| Webhook Support | ✓ | ✓ |