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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.

15Minutes logo
15Minutes
✓ verifiedPaid

Library of short book summaries, analyses, and audiobooks spanning thousands of nonfiction and fiction titles.

8.8K visits/mo533 saves
ChatDOC logo
ChatDOC
✓ verifiedFree

AI assistant extracting and summarizing document info; real adoption.

90K visits/mo15K saves
Zeli logo
Zeli
✓ verifiedFree

Lightweight digest reader that curates and summarizes trending Hacker News posts and Hugging Face papers to speed up daily reading.

36K visits/mo
LightPDF AI logo
LightPDF AI
✓ verifiedFreemium

AI-powered online and desktop PDF suite to edit, convert, OCR, sign, organize and chat with documents across devices.

1.8M visits/mo12K saves
Briefy logo
Briefy
✓ verifiedFreemium

Browser and mobile AI summarizer that turns articles, videos and PDFs into structured notes saved to a knowledge base.

26K visits/mo
Pricing

No public pricing

No public pricing

No public pricing

No public pricing

No public pricing

Core features
  • Short book summaries and analysis
  • Summary PDFs and audiobooks
  • Personal library to save titles
  • Extensive category browsing
  • Coverage of thousands of books
  • Chat with documents
  • Instant answers with cited sources
  • AI analysis of selected texts/tables
  • Query across multiple documents
  • Supports various file formats
  • AI summaries of top Hacker News posts
  • Hugging Face daily paper digests
  • Trending/hottest post filtering including Ask HN and Show HN
  • Quick-scan article preview format
  • Edit, convert and annotate PDFs
  • OCR and scanned-PDF enhancement
  • AI summarize and chat with documents
  • E-signature and document organization
  • Batch processing
  • Cross-platform: Web, Windows, Mac, iOS, Android
  • One-click AI summaries of varied content
  • Multiple views: overview, table, mind map, timeline
  • Knowledge base to save and search briefs
  • Ask questions about saved content
  • Multilingual summaries and translation
  • Chrome and Safari/iOS extensions
Use cases
  • Learning a book's key ideas in minutes
  • Listening to book summaries on the go
  • Deciding which full books to read
  • Studying nonfiction concepts efficiently
  • Summarizing long documents
  • Explaining complex concepts
  • Finding key information in seconds
  • Turbocharging research
  • Developers keeping up with Hacker News without reading everything
  • AI researchers scanning new papers quickly
  • Tech enthusiasts wanting a daily curated digest
  • Convert and edit PDFs online or on desktop
  • Summarize or ask questions about documents
  • OCR scanned PDFs into editable text
  • Sign and organize documents across devices
  • Summarizing articles and research papers
  • Digesting long videos and podcasts
  • Building a personal knowledge base
  • Skimming and replying to email threads
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