Your 2nd brain.Your 3rd brain. Thanks to AI.Smarter. Sharper. GOAT-level.
23Brain isn’t about storing notes or saving links — it’s about amplifying your knowledge. AI-powered summaries, quizzes, and search turn scattered information into sharp insights.
💡 Supercharge your brain with AI-powered intelligence.
The one app to help you capture, remember, and grow with every tap.
AI Summarization
Articles, videos, notes and voice memos curated into crystal-clear takeaways — ready for your brain to absorb.
Smart Search
Semantic AI search that recalls your knowledge like a second brain — instantly.
Quizzes & Practice
AI-generated quizzes designed to activate your knowledge. Daily quizzes. And quizzes for every single content piece.
Stats & Dashboard
Visualize your streaks. Analyze your performance. Follow your progress.
AI Content Recommendations
Receive content recommendations powered by your personal 23Brain AI agent.
Smart Watchlist
Summaries and quizzes for new episodes of your favorite YouTube channels — on autopilot.
Content Collections
Structure your knowledge with collections. Share & build them with friends.
AI Powered Chat
Chat with your 2nd (and 3rd) brain — get instant answers, explanations, and insights powered by AI.
AI Summarization
Save time and remember more with instant AI-powered summaries.
Paste any article, upload a file, or share a video — 23Brain extracts the key points and creates quizzes for you.
Strengthen Your Knowledge with AI Powered Quizzes
Turn what you’ve learned into lasting knowledge through quick, interactive quizzes.
Track streaks, scores, and progress in a clear dashboard that keeps you motivated and shows your growth over time.
Build Collections Together
Create shared collections with friends to learn, explore, and grow as a team.
Save articles, videos, and notes into themed collections—then collaborate with others to connect ideas and discover new insights.
Discover Content That Matters
Smart, AI Powered Content Recommendations
23Brain helps you uncover new valuable content. Explore fresh insights tailored to your knowledge journey.
Create Smart Watchlists
Let 23Brain AI discover your favorite content pieces to help you save time.
Receive automatically generated summaries for your favorite content pieces.
Chat. Learn. Remember.
Knowledge that sticks.
Chat with your 2nd (and 3rd) brain — get instant answers, explanations, and insights powered by AI.
Great Knowledge, Small Price
Advanced discovery, personalized quizzes, and full control of your knowledge base.
Basic
FREE FOREVER
No Credit Card Required
$0
/Monthly
AI Summaries
Daily Quizzes
Shared Collections
Unlimited AI Conversations
3 Collections
10 Article Summaries (up to 5000 words)
10 Screenshot Summaries
5 Video Summaries (up to 10 Minutes)
5 File Uploads (up to 1MB)
10 Audio Uploads (up to 1MB)
10 On-Demand Quizzes
Pro
3 Day Trial
The GOAT of AI learning plans.
$12.99
/Monthly
AI Summaries
Up to 3 Daily Quizzes
Unlimited Shared Collections
AI Content Discovery
Automatic Screenshot Discovery
Channel Subscriptions
Advanced Statistics
Unlimited AI Conversations
AI Chat Model Selection
Unlimited Collections
100 Article Summaries (any length)
100 Screenshot Summaries
25 Video Summaries (any length)
25 File Uploads (up to 5MB)
Unlimited On-Demand Quizzes
Wanna get the Brain of a GOAT?
Join the waitlist and get early access to the one app to help you capture, remember, and grow with every tap.
