Join the waitlist

For people who read non-fiction

Remember the books you read.

Kern turns any book you've finished into five minutes of daily recall.

✓ You're in. We'll email you the moment Kern launches.

7 days free at launch · no credit card · iOS first

MYTH BUSTER

“The baker feeds you out of kindness.”

Wrong — he does it out of self-interest. That's exactly what makes markets work.

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THE WEALTH OF NATIONS · SMITH
PRINCIPLE

You don't control what happens — only what you make of it.

Events are neutral. The judgment you add is the only part you own.

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MEDITATIONS · MARCUS AURELIUS
KEY CLAIM

The greatest victory is the battle you never have to fight.

Position, timing and information beat force. Win before the first move — or don't move.

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THE ART OF WAR · SUN TZU
DID YOU KNOW

Evolution doesn't reward the strongest — only what survives long enough to reproduce.

“Fitness” means reproductive success, not power. A fragile species that out-breeds a strong one still wins.

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ON THE ORIGIN OF SPECIES · DARWIN
PRINCIPLE

Habits are the compound interest of self-improvement.

1% better every day is about 37× better in a year. The gains stay invisible — until they aren't.

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ATOMIC HABITS · CLEAR

What you'll swipe

An idea, and the why
underneath it.

PRINCIPLE

Habits are the compound interest of self-improvement.

1% better every day is about 37× better in a year. The gains stay invisible — until they aren't.

ATOMIC HABITS · CLEAR
DID YOU KNOW

Evolution doesn't reward the strongest — only what survives long enough to reproduce.

“Fitness” means reproductive success, not power. A fragile species that out-breeds a strong one still wins.

ON THE ORIGIN OF SPECIES · DARWIN
KEY CLAIM

The greatest victory is the battle you never have to fight.

Position, timing and information beat force. Win before the first move — or don't move at all.

THE ART OF WAR · SUN TZU

How it works

No uploads. No homework.

01
Add a book you've read
Just the title. If you finished it, Kern can work with it.
02
Get your cards
Its key ideas, paraphrased into a deck you swipe through.
03
Five minutes a day
Cards interleave across your library. The ones you're forgetting come back.
THE WALL ＋ / ⚙
⌗ Saved cards12 ›

YOUR BOOKS · 2 INKED · 2 FADING

MEDITATIONS
INKED
THE WEALTH OF NATIONS
INKED
ON THE ORIGIN OF SPECIES
FADING
ATOMIC HABITS
GOING COLD

Your library

Alive, or fading.

Every book brightens when you review it and cools when you don't — so you always see what's slipping. No streaks. No guilt.

Why Kern

Made for the books
you actually finished.

Any book you've read
Even paper books, even ones no summary app has. If you finished it, Kern can make the cards.
Nothing to set up
No uploads, no highlights, no deck-building. Type a title — your cards are ready in seconds.
Your whole library, interleaved
Ideas from every book mix together and resurface right as they start to slip away.
Five minutes, no guilt
No streaks, no leaderboards, no homework. A calm daily habit that actually sticks.

iOS · early 2026

Keep the next book
you finish.

Join the waitlist and you'll be among the first in.

✓ You're in. We'll email you the moment Kern launches.

7 days free at launch · no credit card