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Simple Phones vs assistant-ui

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Simple Phones compared with assistant-ui
DetailSimple Phones logo Simple Phonesassistant-ui logo assistant-ui
What it doesAI phone agent to answer customer calls Open-source React components and runtimes for building AI chat
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFree trial Open source
PricingPlans start at $97/mo for 100 calls/mo with no commitment. The core library is free and MIT licensed. assistant-cloud offers: Free ($0, 200 MAU included), Pro ($50/mo, 500 MAU included plus $0.10 per additional MAU), Enterprise (custom MAU pricing, contact for details).
Key features
  • Inbound call handling with customized AI voice agent
  • Outbound calling for customer follow-up and cold calls
  • Call logging with transcripts and duration records
  • Call routing and escalation
  • Multiple languages and accents
  • Website and FAQ document integration
  • CRM and Zapier integration
  • Chat-based agent testing
  • Webhook and email alerts
  • Streaming support for real-time chat output
  • Tool execution and integration
  • Thread persistence and history
  • Voice support
  • Generative UI rendering
  • Message attachments
  • Conversation branching
  • Multi-platform support (React, Vue, React Native, Ink)
  • Runtime adapter support (AI SDK, LangGraph, LangChain)
  • Fully customizable component composition
What makes it different
  • Continuous improvement over time based on interaction logs
  • No setup or development costs included in plan
  • Free ongoing customizations
  • Handles complex inquiries with custom integrations
  • Works with any backend through pluggable runtime adapters
  • Complete source code available for customization via CLI
  • Production-ready runtime handling streaming, tools, and state
  • Free MIT license with optional paid cloud persistence
  • Cross-platform support with single chat model
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)38 −1 (down) since last check53 +1 (up) since last check
Trust Flow (Majestic)1912
Citation Flow (Majestic)3639
Referring domains (Majestic)511572

5 details filled in for both companies.

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