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Futurwise logo
Futurwise
✓ verifiedFreemium

Curated intelligence app delivering verified, attributed human analysis across tech, climate, health and mobility.

40K saves
Semantic Scholar logo
Semantic Scholar
✓ verifiedFree

Free AI-powered academic search engine indexing 236M+ papers, for researchers wanting semantic literature discovery and an augmented reader.

7.9M visits/mo13K saves
txyz.ai logo
txyz.ai
✓ verifiedFreemium

AI research assistant for reading, searching, and writing about academic papers, built for researchers managing a personal library.

110K visits/mo
Astra AI logo
Astra AI
✓ verifiedFreemium

AI tutor for school and university subjects with step-by-step help, exam prep, oral/mock exams and flashcards.

4.4M visits/mo1.7K saves
Pricing

No public pricing

No public pricing

Free: $0/year (up to 100-page file analysis, 5 writing pages)
Pro: $96/year (up to 100-page analysis, full library access)
Ultra: $288/year (up to 300-page analysis, 3x context window)

No public pricing

Free trial available

Core features
  • Curated intelligence across four domains
  • Tiered source channels from news to research
  • Verified and attributed human insight
  • Daily updates on fast-changing topics
  • Mobile and web access
  • AI-powered semantic search across 236M+ papers
  • Semantic Reader for augmented, contextual paper reading
  • Free public API for paper search and metadata
  • Author and topic discovery
  • Citation graph exploration
  • Beta program for new features
  • AI-assisted search across academic papers
  • Chat-based Q&A over uploaded documents with source citations
  • Personal research library with retention limits by plan
  • AI writing agent for drafting research-based content
  • API access for institutions and businesses
  • Adjustable file upload size (up to 300 pages on top tier)
  • Step-by-step subject explanations
  • Photo-based math problem solving
  • Oral and mock exam practice with grading
  • Personalized study plans
  • Flashcards from uploaded notes
  • Coverage of many subjects, user-created subjects
Use cases
  • Staying informed on emerging tech and policy
  • Following expert analysis over algorithmic feeds
  • Tracking research shaping the next few years
  • Researchers searching scientific literature across disciplines
  • Developers building applications on top of scholarly data via the API
  • Students exploring citation networks for a topic
  • Librarians and academics needing free literature discovery tools
  • Finding papers relevant to a research topic
  • Getting quick summaries and answers from long PDFs
  • Managing and revisiting a personal library of research papers
  • Drafting literature-informed writing with AI assistance
  • Integrating paper search/analysis into an institution's own tools via API
  • Prepare for school or university exams
  • Get help understanding tough concepts
  • Practice oral exams out loud
  • Study from your own notes
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