Alternatives to Zappio

One no-code platform for AI chatbot, outbound voice calling, WhatsApp broadcast, and sales analytics agents.

PolyAI builds enterprise voice AI agents that handle complex customer calls in 40+ languages

Synthflow AI runs enterprise voice AI agents on its own telephony network for automated phone calls at scale.

AI voice and chat support agents that chase a metric — resolution rate, escalation rate, or CSAT — not just answer calls.

Voice-first AI assistant that turns WhatsApp voice notes and texts into structured real estate leads with automated follow-ups

Enterprise AI concierge platform for customer support agents that work across chat, voice, and email.

Build voice and chat agents that hold real conversations in 70+ languages, live in about five minutes.

Agentic AI for property management and healthcare that answers every lead, resident, and patient 24/7 across SMS, email, chat, and voice.

Voctiv is an omnichannel generative AI platform that handles calls, messages, and appointments for enterprises, SMBs, and solo professionals.

AI phone answering built only for restaurants — it takes inbound calls, answers guest questions, and books reservations 24/7.

Enterprise voice AI agents running on Synthflow's own telephony network, from $30,000/year

SkipCalls is a 24/7 AI receptionist that answers your existing business line, books jobs, blocks spam, and texts you every call summary for $19.99/mo.

AI voice admissions rep that calls every career-school inquiry within 60 seconds and books the appointment

Upfirst is an AI phone receptionist that answers calls 24/7, books appointments into your calendar, and texts you the details.

Zuma's Kelsey is an AI leasing, collections, move-out, and voice agent for multifamily property management teams, with a human team behind it 24/7.

Inworld is a research lab and inference provider for realtime voice AI, offering first-party TTS-2 and STT models plus a zero-markup LLM router for developers

Inworld AI is a research lab and inference provider for realtime voice — first-party TTS-2 and STT models plus zero-markup routing across 220+ LLMs.

Open-source, self-hosted voice AI platform with a visual workflow builder, MCP-native design, and bring-your-own-key model support.

Resolve is an AI-native CRM built only for debt settlement teams, with six named AI workers automating intake, servicing, and negotiations.

ElevenLabs turns text into ultra-realistic AI voice, music, dubbing and conversational voice agents from one credit pool.

Bland AI runs enterprise voice AI phone agents for regulated calls, with a per-minute rate that bundles LLM, STT, and TTS.

Vapi is an API-first platform for building voice AI agents that handle real inbound and outbound phone calls at sub-500ms latency.

No-code AI voice agents that run outbound and inbound phone calls, book meetings, and take call-time actions for you.

Low-latency text-to-speech API and AI voice agents — Murf AI runs real-time phone conversations at 1 cent per minute.

Real-time voice AI platform: Sonic-3.6 text-to-speech and Ink-2 speech-to-text models plus Managed Agents for building production voice agents.

Modular LLM agentic AI platform that automates enterprise contact centers across voice and text in Swiss-German, German, French and Italian.

Millis AI (by TMate Inc.) builds LLM voice agents you can deploy to phone numbers, web, mobile or desktop with claimed 500–600ms latency.

Open-source voice AI framework for building real-time voice agents you host yourself

Open-source Vue 3 components for building custom ElevenLabs voice and audio agent interfaces.

Valley is signal-based LinkedIn and email outbound software that turns profile viewers, post engagers, and followers into booked meetings.