Compare tools
Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
⇄ Comparison dimension — pick the market you're actually shopping in
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Keymate.AI
✓ verifiedFreemium
AI memory workspace that saves your own sources (PDFs, Docs, YouTube, email) and answers questions from them, also inside ChatGPT.
1.5K visits/mo11K saves
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DeepWiki
✓ verifiedFree
Free tool that auto-generates conversational, browsable documentation for any public GitHub repo, from the makers of Devin.
1.2M visits/mo
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Recall
✓ verifiedFreemium
AI knowledge base that saves, summarizes and connects articles, videos, podcasts and PDFs into a graph you can chat with.
152K visits/mo1.5K saves
Pricing
No public pricing
No public pricing
Free: $0 (10 AI summaries/mo)
Plus: $10/mo billed yearly (unlimited summaries)
Max: $38/mo billed yearly (bulk actions, model choice)
Core features
- ✦Private memory built from your own files and sources
- ✦Supports PDFs, Google Docs, URLs, YouTube and emails
- ✦Scoped, grounded question answering
- ✦Organization by project/campaign with shared team collections
- ✦Use inside ChatGPT
- ✦Automation via Make.com
- ✦AI-generated documentation for GitHub repos
- ✦Conversational Q&A about a codebase
- ✦Browsable index of popular repositories
- ✦Deep code indexing via Devin
- ✦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
Use cases
- →Querying your own documents with AI
- →Marketing, ops and sales knowledge management
- →Keeping team knowledge searchable and shared
- →Auto-capturing and searching emails
- →Understanding an unfamiliar codebase quickly
- →Onboarding to open-source projects
- →Answering questions about repo internals
- →Building a personal 'second brain'
- →Summarizing long content to save time
- →Chatting with your own saved knowledge
- →Retaining what you read via spaced repetition
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