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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.

Heuristica logo
Heuristica
✓ verifiedFreemium

An AI-powered learning platform that turns sources into concept maps, flashcards, quizzes and summaries with multi-model chat.

89K visits/mo12K saves
elium.com logo
elium.com
✓ verifiedPaid

Enterprise AI knowledge-management platform for building a governed, searchable company knowledge hub teams actually use.

26K visits/mo
YouMind logo
YouMind
✓ verifiedFreemium

AI creation studio that gathers scattered notes and ideas, then helps shape them into articles, slides, videos, or webpages.

1.1M visits/mo
supermemory™ logo
supermemory™
✓ verifiedFreemium

Developer API that gives AI agents persistent memory, retrieval, and connectors, usable both as infrastructure and a personal app.

174K visits/mo
StudyFox logo
StudyFox
✓ verifiedPaid

AI Chrome extension and dashboard that solves quiz questions in-browser and generates notes, flashcards, and mind maps for students.

3.1K visits/mo
Pricing
Basic: Free (up to 3 saved concept maps)
Professional: $7.99/mo (unlimited maps, multi-model AI, all features)
Team: 15€/user/mo billed yearly
Corporate: 20€/user/mo billed yearly

Free trial available

No public pricing

Free: $0/mo (~$5/mo of usage included)
Pro: $19/mo (~$20/mo of usage, unlimited storage, 2 teammates)
Max: $100/mo (~$130/mo of usage, 6x Pro headroom)
Scale: $399/mo (~$600/mo of usage, up to 10 teammates)
Weekly: $2.99/week (3-day free trial)
Monthly: $9.99/mo, billed $119.88/yr (3-day free trial)
Semester: $29.99/4 months, billed $89.97/yr (3-day free trial)
Yearly: $79.99/year (3-day free trial)

Free trial available

Core features
  • Concept map builder
  • Flashcards with spaced repetition
  • AI quiz and summary generation
  • Import from PDFs, YouTube, websites, PubMed and arXiv
  • Multi-model AI chat (GPT, Claude, Gemini, Qwen)
  • Cross-format conversion and sharing
  • AI-powered search and answers
  • Content approval and expiration workflows
  • Multi-language sharing with AI translation
  • Templates and rich content creation
  • Microsoft, Slack, Google Drive integrations
  • ISO 27001 security, EU hosting, GDPR
  • Central capture space for saved articles, videos, and notes
  • AI prompts that surface connections and gaps in collected ideas
  • Generates articles, slide decks, videos, and webpages from source material
  • Prebuilt style templates for slides and pages
  • Available as desktop app, browser extension, and mobile app
  • Skill and prompt library for specific creation tasks
  • Persistent, structured memory built as a knowledge graph
  • Sub-300ms hybrid retrieval (RAG) with reranking
  • Native filesystem mount for agent memory access
  • Connectors to Slack, Notion, Drive, Gmail, GitHub, S3
  • Automatic extraction from PDFs, images, and audio
  • User profile and behavior tracking across sessions
  • Browser extension that solves quiz questions via popup or sidebar
  • Works across major LMS platforms like Canvas, Blackboard, and Moodle
  • AI note taker and lecture note converter
  • AI flashcard and mind map generators
  • PDF, video, and slide summarizers
  • Screenshot or Ctrl+V paste question solving
Use cases
  • Visualizing and studying complex topics
  • Turning research sources into study materials
  • Literature review and dissertation prep
  • Central company knowledge base
  • Customer support and IT service desk
  • Onboarding and knowledge retention
  • Market watch and user insights
  • Creators consolidating research into finished blog posts or scripts
  • Professionals turning meeting notes into structured reports
  • Teachers converting lesson ideas into slides and video lessons
  • Product managers organizing scattered feedback into insights
  • Developers adding long-term memory to AI agents
  • Teams building agents that need to sync with existing tools
  • Individuals wanting one memory layer shared across multiple AI assistants
  • Answering quiz questions live within an LMS platform
  • Turning lecture recordings into structured notes
  • Summarizing long PDFs or videos before an exam
  • Building flashcards and mind maps from course material
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