Unlock the full power of Ysum

Track, tag, share, and grow your knowledge flow.

⚡
Chrome ExtensionLive
Instantly shows usefulness scores (0–100) on YouTube thumbnails. See value at a glance — before you click.
ChromeInstall Extension
🤖
Personalized SummariesIn Development
Get summaries rewritten based on your preferred style: student, strategist, creator, analyst. Built on our Persona Engine (coming soon).
Join the waitlist
🧠
Persona & Watch ModeIn Development
Customize what you see: filter by topic or mental lens. Tailor your YouTube to how your brain learns best.
Join the waitlist

📊 Analytics & Watch History

Let users track how they learn, not just what they watch.

  • Timeline of watched/processed videos with date
  • Token usage overview (daily/monthly)
  • Most frequent topics (from tags/personas)
  • Time saved (based on summary vs full video duration)
  • Export activity logs (CSV/JSON)
Think of it as your AI-powered second brain journal.

🏷️ Smart Tags & Learning Insights

Automatically organize your content by what it teaches, not just what it is.

  • Auto-generated tags from summary topics (e.g.
    #startups
    ,
    #philosophy
    )
  • Manual tag override/edit (in Pro)
  • Personalized tag frequency graph
  • Surfacing cross-topic patterns
  • Clustering: "You watch a lot of AI content between 10pm–12am"
Turn your content stream into a personal knowledge graph.

🌐 The Ysum Public Feed

What’s trending in the world of high-value YouTube?

  • A feed of recently scored high-RPI videos
  • Filters: by tag, persona, creator
  • Most saved/shared summaries this week
  • "Staff picks" or “Community Picks” (optionally upvoted)
  • Preview of summary block (read-only)
A window into what others are learning and saving with Ysum.

🎁 Invite & Earn Tokens

Grow the Ysum community and unlock more summaries.

  • Share link → track invited users
  • Earn tokens (or Pro time) per verified install or login
  • Leaderboard (optional)
  • Referral analytics: clicks, conversions
  • Auto-copy button + social sharing
Every friend you invite saves more time — and helps build a smarter YouTube.
ChromeInstall ExtensionUnlock Pro