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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.
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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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Paperguide
✓ verifiedPaid
All-in-one research platform for reading, writing and managing papers; high traffic.
286K visits/mo4.1K saves
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Coursology
✓ verifiedPaid
AI homework helper with scan-and-solve, file chat, quizzes, flashcards and lecture note-taking across subjects for students.
109K visits/mo2.1K saves
Pricing
No public pricing
Free: $0/month
Starter: $9/month
Advanced: $16/month
Annual: $12.50/mo billed yearly
Monthly: $24.99/mo
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 Search
- ✦Literature Review
- ✦AI Writer
- ✦Reference Manager
- ✦Chat with PDF
- ✦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
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
- →Finding relevant research papers and getting research-backed answers.
- →Analyzing papers faster with accurate data extraction.
- →Generating and polishing academic content using AI.
- →Streamlining citation and reference management.
- →Getting step-by-step homework solutions
- →Studying from uploaded course materials
- →Turning lectures into notes and quizzes
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