Hiver vs Retell AI
Choose Hiver if your team manages customer support primarily through email and needs a collaborative, AI-enhanced helpdesk that spans multiple channels without abandoning the Gmail or Outlook environment your agents already know. It is the right fit when you need a single platform covering ticketing, knowledge base, CSAT, and omnichannel communication at a predictable per-seat price. Choose Retell AI if your primary challenge is automating or scaling phone-based interactions and you need enterprise-grade voice AI with sub-second latency, high uptime guarantees, and usage-based economics. It is the decisive choice when voice is your dominant support or sales channel and you need a specialized AI voice infrastructure layer that integrates into your existing telephony and CRM stack.
 Hiver |  Retell AI | |
|---|---|---|
| Rating | ||
| Pricing | Free / $19-49/user/month | Free tier + usage-based |
| Free Plan | ||
| Free Trial | ||
| AI Agents for triage and routing | ||
| AI Copilot for agent assistance | ||
| Omnichannel support (email, chat, voice, WhatsApp) | ||
| AI Insights and sentiment analysis | ||
| Shared inboxes | ||
| Workflow automation | ||
| Knowledge base | ||
| CSAT surveys | ||
| Real-time collaboration | ||
| Ultra-low latency | ||
| Integrations | 8 | 4 |
Hiver and Retell AI both leverage artificial intelligence to modernize customer experience, but they solve fundamentally different problems. Hiver transforms Gmail and Outlook into full-featured helpdesks with omnichannel support, while Retell AI specializes exclusively in ultra-low-latency voice AI for automated phone conversations. CX professionals comparing these tools are likely evaluating whether they need a broad customer support platform or a dedicated voice AI solution, and understanding that distinction is critical to making the right investment.
Why Hiver?
Hiver stands out by embedding AI directly into Gmail and Outlook, eliminating the learning curve associated with adopting an entirely new platform and allowing support teams to go live in hours rather than weeks. Its AI Copilot assists agents with suggested replies, summaries, and sentiment analysis, while AI Agents handle autonomous triage and routing across email, chat, voice, and WhatsApp from a unified inbox. Hiver is particularly well-regarded among small and mid-sized businesses in sectors like education, healthcare, and professional services, with customers such as Harvard University, Flexport, and Pluralsight using it to manage high-volume support queues. With plans starting as low as $19 per user per month and a functional free tier, Hiver offers one of the most accessible price points in the collaborative helpdesk market.
Why Retell AI?
Retell AI differentiates itself through proprietary voice AI orchestration that achieves approximately 600ms end-to-end latency, enabling phone conversations that feel genuinely natural rather than robotic. The platform supports advanced turn-taking models that detect interruptions and pauses accurately, a critical feature for high-stakes use cases like healthcare intake, appointment scheduling, and outbound sales campaigns. Retell AI has demonstrated measurable ROI in enterprise deployments, including an 80 percent cost reduction reported in healthcare settings, and its 99.99 percent uptime SLA makes it suitable for mission-critical telephony workflows. Its usage-based pricing model means businesses only pay for the call minutes and interactions they consume, making it scalable from startups running pilot programs to enterprises processing millions of calls monthly.
Hiver Is Best For
Hiver is the ideal choice for small to mid-sized businesses with 5 to 500 support agents who already rely on Gmail or Outlook and want to add structure, collaboration, and AI without migrating to a complex new platform. It suits industries like SaaS, e-commerce, education, and professional services where support is primarily email-driven but also requires chat and voice channels. Teams that need CSAT measurement, knowledge base management, and workflow automation under a single affordable subscription will find Hiver's feature breadth particularly compelling. Budget-conscious operations managers looking for a sub-$50 per user monthly solution with a clear upgrade path will find Hiver hits the right balance of power and simplicity.
Retell AI Is Best For
Retell AI is purpose-built for businesses that need to automate or augment inbound and outbound phone interactions at scale, making it ideal for contact centers, healthcare providers, insurance companies, and financial services firms. It is best suited for organizations handling thousands to millions of voice interactions per month where human agent costs are significant and call quality directly impacts customer outcomes. Technical teams with the ability to integrate via APIs and configure SIP trunking will extract the most value, as Retell AI is a developer-friendly infrastructure layer rather than a turnkey helpdesk. Enterprises running outbound batch campaigns for appointment reminders, collections, or lead qualification will find Retell AI's campaign management and real-time function calling capabilities particularly well matched to their needs.
The Verdict
Choose Hiver if your team manages customer support primarily through email and needs a collaborative, AI-enhanced helpdesk that spans multiple channels without abandoning the Gmail or Outlook environment your agents already know. It is the right fit when you need a single platform covering ticketing, knowledge base, CSAT, and omnichannel communication at a predictable per-seat price. Choose Retell AI if your primary challenge is automating or scaling phone-based interactions and you need enterprise-grade voice AI with sub-second latency, high uptime guarantees, and usage-based economics. It is the decisive choice when voice is your dominant support or sales channel and you need a specialized AI voice infrastructure layer that integrates into your existing telephony and CRM stack.