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AI knowledge base that saves, summarizes and connects articles, videos, podcasts and PDFs into a graph you can chat with.
Popular tool to chat with PDFs and other documents, giving summaries and cited answers, with a free daily tier and no-signup start.
Engagement suite adding live chat, comments, polls and live blogs to publisher and brand sites to grow and monetize audiences.
AI homework helper with scan-and-solve, file chat, quizzes, flashcards and lecture note-taking across subjects for students.
AI finance platform for stock insights and earnings-call analysis; real niche tool.
No public pricing
Free trial available
No public pricing
- ✦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
- ✦Chat with PDFs, Word, PowerPoint and text files
- ✦Summaries with cited sources
- ✦Multi-file chats via folders
- ✦Any-language upload and chat
- ✦Extra tools: AI writer, detector, flashcards, slides
- ✦No-signup quick start
- ✦Threaded comments
- ✦Real-time group chat
- ✦Live blog streams
- ✦AI polls and moderation
- ✦First-party data capture
- ✦No-code website embed
- ✦Scan-and-solve homework across subjects
- ✦Chrome extension for answers
- ✦Chat with uploaded files and materials
- ✦AI quizzes and flashcards
- ✦AI lecture note-taking
- ✦AI study podcasts
- ✦Earnings call transcript analysis
- ✦Financial analysis for single or multiple quarters
- ✦Mind map module for earnings call summaries
- ✦Sequential question interpretation
- ✦User self-questioning and insight saving
- →Building a personal 'second brain'
- →Summarizing long content to save time
- →Chatting with your own saved knowledge
- →Retaining what you read via spaced repetition
- →Understand research papers
- →Study and homework help
- →Review contracts and reports
- →Translate and summarize documents
- →Live event coverage
- →Growing on-site community
- →Monetizing audience with ads
- →Capturing first-party data
- →Getting step-by-step homework solutions
- →Studying from uploaded course materials
- →Turning lectures into notes and quizzes
- →Analyzing earnings call transcripts of S&P 500 companies
- →Gaining insights into US, Chinese, and Hong Kong stock markets
- →Understanding corporate operations and market trends
- →Making informed investment decisions