Chapterize records 2,186 monthly visits with 0% month-over-month growth and Paid pricing. Readray (formerly Lilys AI) records 967,113 monthly visits with -9.7% growth and Freemium pricing.
Key insights from any book, video or article in minutes
A proactive AI reading lens for papers, videos, and web pages
| Dimension / Metric | | |
|---|---|---|
| Official Domain | chapterize.ai | lilys.ai |
| Pricing Model | Paid | Freemium |
| Monthly Visits | 2.19K (2,186) | 967.11K (967,113) |
| MoM Traffic Delta | -1 (0%) | -103.89K (-9.7%) |
| Primary Market & Share | 🌐 Global (—) | 🇰🇷 South Korea (84%) |
| Direct Visits / mo | 859 | 439.39K |
| User Rating | 4.2 | 4.3 |
| Supported Platforms | Website | Website |
Key insights from any book, video or article in minutes
The AI identifies and highlights the most important insights in a long document, video or book so nothing critical is missed.
Ask questions about any summarised document and get instant, context-aware answers drawn from the material itself.
Listen to summaries on the go, ideal for commutes or multitasking when reading is not practical.
Fine-tune summary output with advanced LLM parameters to match the depth and style you want.
A proactive AI reading lens for papers, videos, and web pages
Videos are analyzed scene by scene, capturing frames of slides, charts, and code shown on screen — not just the spoken transcript.
Figures, tables, and equations in research papers and PDFs are parsed with their original structure so summaries reflect the real content.
Each line of AI output links to the exact source passage; clicking it jumps the viewer straight to that spot in the original.
Sources you read become a personal library that Claude, ChatGPT, Gemini and other MCP-compatible tools can query directly.
Extremely capable general AI assistant for summarizing text and URLs, but lacks dedicated video timestamp extraction workflows.
Extremely capable general AI assistant for summarizing text and URLs, but lacks dedicated video timestamp extraction workflows.
Excellent YouTube video and document summarization with timestamps, but lacks broader research paper management workflows.
Excellent YouTube video and document summarization with timestamps, but lacks broader research paper management workflows.
SpecialistMuch stronger academic paper search and scientific literature analysis, but less versatile for general YouTube video summaries.
SpecialistMuch stronger academic paper search and scientific literature analysis, but less versatile for general YouTube video summaries.
Free / Open-sourceBite-sized book and podcast insights you can finish in 15 minutes
Free / Open-sourceBite-sized book and podcast insights you can finish in 15 minutes
Free / Open-sourceIn-depth guides that help you actually master non-fiction
Free / Open-sourceIn-depth guides that help you actually master non-fiction
Free / Open-sourceRead more books, easier — key ideas from thousands of titles.
Free / Open-sourceRead more books, easier — key ideas from thousands of titles.
Stronger focus on turning study materials and videos into interactive quizzes and flashcards, but less standalone reading assistance.
Stronger focus on turning study materials and videos into interactive quizzes and flashcards, but less standalone reading assistance.
SpecialistConverts videos and documents into visual mind maps, but lacks traditional linear document reading assistance features.
SpecialistConverts videos and documents into visual mind maps, but lacks traditional linear document reading assistance features.
Free / Open-sourceFree AI Summarizer for text, articles, URLs and images
Free / Open-sourceFree AI Summarizer for text, articles, URLs and images
SpecialistConverts research papers into interactive flashcard summaries, but less optimized for general web page and video parsing.
SpecialistConverts research papers into interactive flashcard summaries, but less optimized for general web page and video parsing.
Free / Open-sourceTurn any video into a clean summary, transcript, or mind map — free, no sign-up
Free / Open-sourceTurn any video into a clean summary, transcript, or mind map — free, no sign-up
Stronger focus on audio and video repurposing into concise summaries, but less capable at deep PDF academic analysis.
Stronger focus on audio and video repurposing into concise summaries, but less capable at deep PDF academic analysis.
