Mark

World's First AI Highlighter

Read once. Retrieve anytime.

Join the waitlist

Join 5,064 readers building the future of intelligent reading.

Capture

Capture with ease: physical or digital.

Wherever you read — from eBooks to paperbacks — Mark captures it.

Mark device scanning highlighted text on a physical book page with scanner light visible
Mark device scanning text on a Kindle e-reader screen with scanner light visible
Mark mobile app UI showing organized reading highlights and insights
Mark mobile app UI showing searchable ideas and quote cards
Mark mobile app UI showing personalized reading organization tools

Organize

All your ideas. Instantly searchable.

Search key ideas, generate AI-powered insights, and share meaningful quotes.

Beyond paper

Turn spoken thoughts into structured knowledge.

Record lectures, conversations, and audiobooks — automatically transcribed and linked to your reading.

Uniquely designed for reading.

Sleek. Compact.

Mark is purpose-built for readers — a beautifully simple device that lives quietly inside your book. Wherever your next read takes you, it's already there.

With an intuitive scanner for paper and screens, an integrated microphone, and intelligent AI organization, Mark turns what you read into structured knowledge.

Mark device in silver finish - side profile renderMark device in black finish - side profile render

7+ days battery life

Charge it once, forget about it — just you and the book, whenever you want.

$1 deposit • 25% off MSRP

Three steps.

How Mark Works

A lifetime of knowledge.

Reader with Mark device scanning book pages

Scan your pages

Slip Mark into your book. Its camera silently scans the pages you just read — physical or digital text, it captures everything automatically.

Reader capturing voice notes and highlights with Mark

Record your thoughts

Voice notes, highlights, reactions — captured instantly. Mark turns your spoken thoughts into structured, searchable knowledge while the ideas are still fresh.

Mark app search and resurfaced reading insights

Retrieve anytime

Search your entire reading history by concept, book, or idea. Smart reminders resurface key insights using spaced repetition — so knowledge actually sticks.

7.4 million readers discovered Mark

One tweet ignited a global conversation among readers.

Our Mission

Unlock your intellectual potential

“I got into reading and self-help books and wanted a tool that could organize and keep track of all my thoughts, notes, and insights. I hope Mark can do the same for other everyday readers.”

— Eason Tang