AI-Powered Knowledge Hub
Stay informed,
learn efficiently
GrainBook helps you stay informed and learn efficiently by summarizing information from the sources you already follow. From YouTube videos and podcasts to email newsletters, GrainBook brings everything together.
MALRTMTY
10,000+ users
learning smarter every day
Why GrainBook
Everything you need to
learn smarter
Turn information overload into organized knowledge with powerful features designed for modern learners.
Multi-Source Integration
Connect your favorite information sources including YouTube, podcasts, and email newsletters. GrainBook automatically gathers new content and keeps everything organized in one place, so you'll never miss an update.
YouTube videosPodcastsEmail newslettersAll in one place
Smart AI Summaries
Save time and stay informed with concise AI-generated summaries. Quickly grasp key ideas from long videos, podcasts, or articles, and make learning faster and more efficient than ever.
AI-poweredKey insightsSave timeLearn faster
Save and Review
Found something valuable? Save important insights and revisit them anytime. Build your personal knowledge library to reflect, review, and grow over time.
Personal libraryEasy accessReview anytimeKnowledge growth
Simple, powerful,
effortless
Get started in minutes and transform the way you consume information forever.
01
Connect Your Sources
Link your YouTube channels, podcast feeds, and email newsletters in seconds. GrainBook supports all your favorite content sources.
02
AI Does the Work
Our advanced AI automatically processes new content, extracts key insights, and creates comprehensive summaries.
03
Learn & Grow
Access your personalized knowledge hub anytime. Save important insights and build your learning library over time.
Start Your Journey
Ready to learn
smarter, not harder?
Join thousands of learners who are already transforming information overload into organized knowledge with GrainBook.
Limited free plan • Cancel anytime
@alex
Finally a tool that keeps all my learning sources together. YouTube, newsletters, podcasts—GrainBook summarizes everything perfectly.
@emily
The AI summaries are insanely accurate. I can get through 1-hour podcast content in minutes. Game changer for my daily workflow.
@daniel
What I love most is the ability to save key insights and review them later. My personal knowledge library has never been this organized.
@alex
Finally a tool that keeps all my learning sources together. YouTube, newsletters, podcasts—GrainBook summarizes everything perfectly.
@emily
The AI summaries are insanely accurate. I can get through 1-hour podcast content in minutes. Game changer for my daily workflow.
@daniel
What I love most is the ability to save key insights and review them later. My personal knowledge library has never been this organized.
@alex
Finally a tool that keeps all my learning sources together. YouTube, newsletters, podcasts—GrainBook summarizes everything perfectly.
@emily
The AI summaries are insanely accurate. I can get through 1-hour podcast content in minutes. Game changer for my daily workflow.
@daniel
What I love most is the ability to save key insights and review them later. My personal knowledge library has never been this organized.
@alex
Finally a tool that keeps all my learning sources together. YouTube, newsletters, podcasts—GrainBook summarizes everything perfectly.
@emily
The AI summaries are insanely accurate. I can get through 1-hour podcast content in minutes. Game changer for my daily workflow.
@daniel
What I love most is the ability to save key insights and review them later. My personal knowledge library has never been this organized.
@megan
I subscribe to a ton of newsletters, and GrainBook pulls the important stuff automatically. No more digging through emails.
@carlos
The summaries feel like they were written by a real human. Super concise, super clear. I learn faster than ever.
@sophia
As someone who follows dozens of YouTube educators, having them all summarized in one app is unbelievably convenient.
@ryan
I love how GrainBook turns long content into digestible insights. It fits perfectly into my daily review routine.
@megan
I subscribe to a ton of newsletters, and GrainBook pulls the important stuff automatically. No more digging through emails.
@carlos
The summaries feel like they were written by a real human. Super concise, super clear. I learn faster than ever.
@sophia
As someone who follows dozens of YouTube educators, having them all summarized in one app is unbelievably convenient.
@ryan
I love how GrainBook turns long content into digestible insights. It fits perfectly into my daily review routine.
@megan
I subscribe to a ton of newsletters, and GrainBook pulls the important stuff automatically. No more digging through emails.
@carlos
The summaries feel like they were written by a real human. Super concise, super clear. I learn faster than ever.
@sophia
As someone who follows dozens of YouTube educators, having them all summarized in one app is unbelievably convenient.
@ryan
I love how GrainBook turns long content into digestible insights. It fits perfectly into my daily review routine.
@megan
I subscribe to a ton of newsletters, and GrainBook pulls the important stuff automatically. No more digging through emails.
@carlos
The summaries feel like they were written by a real human. Super concise, super clear. I learn faster than ever.
@sophia
As someone who follows dozens of YouTube educators, having them all summarized in one app is unbelievably convenient.
@ryan
I love how GrainBook turns long content into digestible insights. It fits perfectly into my daily review routine.
@alex
Finally a tool that keeps all my learning sources together. YouTube, newsletters, podcasts—GrainBook summarizes everything perfectly.
@emily
The AI summaries are insanely accurate. I can get through 1-hour podcast content in minutes. Game changer for my daily workflow.
@daniel
What I love most is the ability to save key insights and review them later. My personal knowledge library has never been this organized.
@alex
Finally a tool that keeps all my learning sources together. YouTube, newsletters, podcasts—GrainBook summarizes everything perfectly.
@emily
The AI summaries are insanely accurate. I can get through 1-hour podcast content in minutes. Game changer for my daily workflow.
@daniel
What I love most is the ability to save key insights and review them later. My personal knowledge library has never been this organized.
@alex
Finally a tool that keeps all my learning sources together. YouTube, newsletters, podcasts—GrainBook summarizes everything perfectly.
@emily
The AI summaries are insanely accurate. I can get through 1-hour podcast content in minutes. Game changer for my daily workflow.
@daniel
What I love most is the ability to save key insights and review them later. My personal knowledge library has never been this organized.
@alex
Finally a tool that keeps all my learning sources together. YouTube, newsletters, podcasts—GrainBook summarizes everything perfectly.
@emily
The AI summaries are insanely accurate. I can get through 1-hour podcast content in minutes. Game changer for my daily workflow.
@daniel
What I love most is the ability to save key insights and review them later. My personal knowledge library has never been this organized.
@megan
I subscribe to a ton of newsletters, and GrainBook pulls the important stuff automatically. No more digging through emails.
@carlos
The summaries feel like they were written by a real human. Super concise, super clear. I learn faster than ever.
@sophia
As someone who follows dozens of YouTube educators, having them all summarized in one app is unbelievably convenient.
@ryan
I love how GrainBook turns long content into digestible insights. It fits perfectly into my daily review routine.
@megan
I subscribe to a ton of newsletters, and GrainBook pulls the important stuff automatically. No more digging through emails.
@carlos
The summaries feel like they were written by a real human. Super concise, super clear. I learn faster than ever.
@sophia
As someone who follows dozens of YouTube educators, having them all summarized in one app is unbelievably convenient.
@ryan
I love how GrainBook turns long content into digestible insights. It fits perfectly into my daily review routine.
@megan
I subscribe to a ton of newsletters, and GrainBook pulls the important stuff automatically. No more digging through emails.
@carlos
The summaries feel like they were written by a real human. Super concise, super clear. I learn faster than ever.
@sophia
As someone who follows dozens of YouTube educators, having them all summarized in one app is unbelievably convenient.
@ryan
I love how GrainBook turns long content into digestible insights. It fits perfectly into my daily review routine.
@megan
I subscribe to a ton of newsletters, and GrainBook pulls the important stuff automatically. No more digging through emails.
@carlos
The summaries feel like they were written by a real human. Super concise, super clear. I learn faster than ever.
@sophia
As someone who follows dozens of YouTube educators, having them all summarized in one app is unbelievably convenient.
@ryan
I love how GrainBook turns long content into digestible insights. It fits perfectly into my daily review routine.