Compare tools
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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15Minutes
✓ verifiedPaid
Library of short book summaries, analyses, and audiobooks spanning thousands of nonfiction and fiction titles.
8.8K visits/mo533 saves
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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
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Briefy
✓ verifiedFreemium
Browser and mobile AI summarizer that turns articles, videos and PDFs into structured notes saved to a knowledge base.
26K visits/mo
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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
Pricing
No public pricing
Free: $0 (30 one-time AI credits)
Basic: $5.99/mo billed yearly (1,000 credits/month)
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
- ✦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
- ✦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
- ✦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
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
- →Summarize long content for study or work
- →Turn videos into structured notes
- →Brainstorm and organize ideas visually
- →Digest research and documents faster
- →Summarizing articles and research papers
- →Digesting long videos and podcasts
- →Building a personal knowledge base
- →Skimming and replying to email threads
- →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
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