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AI knowledge base that saves, summarizes and connects articles, videos, podcasts and PDFs into a graph you can chat with.
Adaptive AI reading and math tutor for children ages 4-9 that listens and adjusts lessons in real time.
Free all-in-one desktop AI app to chat with your documents and run RAG and AI agents fully local and private.
Connects your docs, inboxes and apps into one source-backed knowledge base that ChatGPT, Claude and agents can query.
Open-source, self-hostable LMS for building, branding and selling online courses with communities, AI and payments.
No public pricing
No public pricing
Free trial available
- ✦One-click saving of articles, videos, podcasts, PDFs
- ✦AI summaries of saved content
- ✦Automatic tagging and knowledge-graph linking
- ✦Chat with your knowledge using GPT, Claude or Gemini
- ✦Spaced-repetition quizzes
- ✦Browser extension, web and mobile apps; API/MCP access
- ✦Real-time AI listening and adaptation
- ✦Interactive reading and math curriculum
- ✦Create-your-own books
- ✦Science of Reading-aligned library
- ✦Parent progress reports
- ✦Child safety filters
- ✦Chat with your documents (RAG)
- ✦Runs locally and offline for privacy
- ✦Supports any LLM (local or cloud)
- ✦Built-in AI agents
- ✦Handles PDFs, Word, CSV, codebases
- ✦No-code setup
- ✦Unifies docs, websites, inboxes and files into one synced knowledge base
- ✦Works with ChatGPT, Claude, Copilot, Gemini and MCP-aware agents
- ✦Source-cited answers with reviewable past lookups
- ✦Save settled decisions as reusable Memories
- ✦Sources auto re-sync every 24 hours
- ✦Exclude anything you do not want indexed
- ✦Block-based editor for rich course pages
- ✦Multi-module course building and selling
- ✦Communities, boards and interactive playgrounds
- ✦Built-in payments, analytics and AI tools
- ✦White-label branding and custom domains
- ✦Self-hostable, open-source AGPLv3 codebase
- →Building a personal 'second brain'
- →Summarizing long content to save time
- →Chatting with your own saved knowledge
- →Retaining what you read via spaced repetition
- →Helping young children learn to read
- →Building early math skills
- →Supporting struggling or advanced readers
- →Giving parents visibility into progress
- →Privately querying your own documents
- →Running local AI without the cloud
- →Building AI agents over your data
- →Using multiple LLM providers in one app
- →Let AI answer questions about your business from existing content
- →Give e-commerce or agency teams one place to query support, brand and catalog docs
- →Keep canonical decisions like pricing or ICP current across every AI tool
- →Launching and selling online courses
- →Running a branded course marketplace
- →Self-hosting a private learning platform
- →Building learner communities alongside content