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The old rationalist negotiation playbook (BATNA, win-win, split the difference) was built on a false model of how humans actually decide.
✦Built on spaced repetition science
Stop forgettingwhat you read.
Research on the forgetting curve shows most readers lose much of a book within weeks. ChapterFlow turns every chapter into a structured loop that actually makes ideas stick — for good.
No credit card · 2 free books
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THE PROBLEM
Without active recall
With ChapterFlow
Based on Ebbinghaus's Forgetting Curve — spaced repetition and active recall are among the most reliably proven ways to beat it.
You read it. You highlighted it. You forgot it.
You highlight. You take notes. You tell yourself you'll come back to it. A month later, you can barely name the chapters — let alone use the ideas that were supposed to change how you think.
HOW IT WORKS
One chapter. Four steps. Real understanding.
Every chapter follows the same structured loop — designed around how your brain actually retains information.
UNDERSTANDSummary
Read the key ideas at your depth
Choose Lite, Standard, or Deeper. Get the chapter’s main idea, key insight, and takeaways — structured for clarity, not length.
APPLYExamples
See it in a real situation
Examples translate abstract concepts into practical, real-world decisions at work, school, or in everyday life.
PROVEQuiz
Take the quiz, earn the unlock
Five scenario-based questions test whether you can actually apply what you learned. Not trivia — applied thinking.
PROGRESSPractice
Practice, then progress
A short practice step turns what you learned into something you'll actually use — then you move to the next chapter. Progress is earned, not scrolled through.
SEE IT IN ACTION
This is what reading looks like on ChapterFlow.
Summary. Examples. Quiz. Practice. Every chapter, every book.
THE LIBRARY
105 books, each structured the same way.
Every title is broken into chapters with summaries, examples, and quizzes. Browse by topic, pick a book, start reading with structure. Showing 8 of 105.
Books available0
Minutes per chapter~0 min
Free to start0 books
Lite · Standard · Deeper0 levels
WHY IT WORKS
No magic. Just the method that makes ideas stick.
Prove it, then progress
Active recall, not highlighting
Every chapter ends with a quiz you have to pass to unlock the next one — the retrieval practice that actually moves ideas into long-term memory.
100+ books · 10+ categories
One structure across the whole library
Every title is rebuilt into the same four-step loop — Summary, Examples, Quiz, Practice — so you always know how to read it.
2 free books
Try it before you pay anything
Read two complete books end-to-end with no credit card. Upgrade to Pro only if the method works for you. Cancel anytime.
100+
books rebuilt into the loop
10+
categories covered
2 free
full books, no card
Built on spaced repetition and active recall — the same retrieval-practice science behind tools like Anki and Duolingo.
PRICING
Start free. Go deeper when you're ready.
No annual lock-in. No confusing tiers. Two plans, one purpose.
The average non-fiction book costs $18. ChapterFlow Pro gives you unlimited structured access for less.
Read 2 free books with no card — or start a 14-day Pro trial for unlimited access.
Free$0
Try ChapterFlow with two complete books.
- Access to the full book library
- Finish up to 2 books
- Lite and Standard depth modes
- Chapter summaries and examples
- Chapter quizzes
- Deeper depth mode
- Unlimited books
Most popularPro
$7.99CAD / month
That's $0.27/day
Unlimited books and the deepest reading mode.
- Access to the full book library
- Unlimited books
- Lite and Standard depth modes
- Deeper depth mode
- Chapter summaries and examples
- Chapter quizzes
- Text-to-speech audio
- Spaced-repetition review
- Reading analytics
- Export your notes
- Priority new title requests
14-day free trial, then $7.99 CAD/month. A card is required; you won't be charged until the trial ends, and you can cancel anytime before then. Refund policy.
Start 14-day free trialSTART WITH ONE CHAPTER
Read like it actually sticks.
No skimming. No shortcuts. Real retention.
Every chapter is a ~12-minute loop: Summary, Examples, Quiz, Practice. Start free — no credit card, no commitment.