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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
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
TLDL logo
TLDL
✓ verifiedFree

Free daily AI-generated digests that turn tech/VC podcast episodes into concise summaries, quotes, and takeaways for busy professionals.

52K visits/mo
AI PDF Summarizer logo
AI PDF Summarizer
✓ verifiedFree trial

Online PDF suite for summarizing, editing, converting, and signing.

12M visits/mo8.7K saves
Mapify logo
Mapify
✓ verifiedFreemium

AI tool that summarizes PDFs, videos, webpages and audio into editable mind maps and lets you chat with the source content.

812K visits/mo9.0K saves
Pricing

No public pricing

No public pricing

No public pricing

No public pricing

Free: $0 (30 one-time AI credits)
Basic: $5.99/mo billed yearly (1,000 credits/month)
Core features
  • Short book summaries and analysis
  • Summary PDFs and audiobooks
  • Personal library to save titles
  • Extensive category browsing
  • Coverage of thousands of books
  • 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
  • AI-generated podcast episode summaries
  • Actionable takeaway lists per episode
  • Notable-quote extraction with context
  • Structured Q&A breakdowns of discussions
  • Curated directory of AI companies, tools, and resources
  • LLM API pricing comparison tool
  • RSS feed for new issues
  • AI-powered PDF summarization
  • PDF editing and signing
  • PDF conversion to various formats
  • Form filling and annotation
  • Summarize PDFs, videos, URLs and audio into mind maps
  • Chat with your documents
  • Translation and summarization in 30+ languages
  • YouTube timestamps and transcription
  • One-click branch expansion
  • Export to image, PDF, Markdown or slides
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
  • Developers keeping up with Hacker News without reading everything
  • AI researchers scanning new papers quickly
  • Tech enthusiasts wanting a daily curated digest
  • Engineers and founders catching up on AI podcasts quickly
  • Investors tracking startup and VC discussions
  • Readers comparing LLM API pricing across providers
  • Professionals following AI industry news without listening to full episodes
  • Summarizing research papers and books
  • Editing and signing contracts
  • Converting PDFs to Word or JPG
  • Filling out tax and official forms
  • Summarize long content for study or work
  • Turn videos into structured notes
  • Brainstorm and organize ideas visually
  • Digest research and documents faster
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