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Clark Reads 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.

Clark Reads compared with assistant-ui
DetailClark Reads logo Clark Readsassistant-ui logo assistant-ui
What it doesWhatsApp and iMessage chat analyzer that provides written reports with real quotes from your messages 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
PricingFree: opening and first half of chapter one. Full report: $9.90 one-time per report, no subscription. 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
  • Reads full conversation history in order
  • Real quotes attached to every observation
  • Supports WhatsApp .zip and .txt exports
  • Supports plain-text iMessage files
  • Media stripped before upload
  • Handles up to 20k messages per report
  • Reports available in multiple languages
  • Automatic report delivery by email
  • 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
  • Data never used to train AI models
  • One-time payment with no subscription required
  • 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)12 +2 (up) since last check53 +1 (up) since last check
Trust Flow (Majestic)512
Citation Flow (Majestic)1739
Referring domains (Majestic)11572

5 details filled in for both companies.

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