2D Geometry, Inc. — makers of Pronotes

Write like paper.
Think in ink.

Pronotes is the Apple Pencil notebook that feels like real paper — and works like a computer. Lightning-fast ink, PDFs you can scribble on, audio that stays in sync, and search that reads your handwriting.

Coming to iPad & iPhone · made by hand in California

Pronotes

The flagship

Meet Pronotes

One place to think with a pen. Pronotes brings the calm of paper and the power of software into a single, beautiful notebook — built entirely in-house, from the ink engine up.

Everything you'd
scribble down.

Six things Pronotes does that make it feel less like an app and more like the best notebook you've ever owned.

Ink that feels real

Pressure, tilt, and speed, drawn on a Metal-accelerated engine of our own. Thousands of strokes on a page and it still zooms like butter.

Mark up any PDF

Drop in a document and write right on top of it. Even big files stream in fast and stay crisp at every zoom level.

Record while you write

Capture audio that stays pinned to your ink. Tap a word weeks later and hear the exact moment you wrote it.

Snap shapes clean

Sketch a rough circle, line, or box and watch it tidy itself up — only when you want it to, never when you don't.

Search your handwriting

Find any note by what you actually wrote — typed or by hand — the instant you start typing in the search bar.

Everywhere, in sync

Your notebooks follow you across iPad and iPhone, synced quietly through iCloud. Start on one, finish on the other.

and the essentials, of course —
  • ruler & guides
  • lasso & move
  • highlighter
  • instant eraser
  • photos
  • custom pens

The studio

Built by people
obsessed with the
feeling of a pen.

2D Geometry is a small studio with one stubborn belief: software for thinking should feel as immediate and forgiving as a fresh page. So we wrote our own ink engine, our own rendering, our own everything — no shortcuts, no borrowed parts.

Pronotes is our first product. It won't be our last.

  • Metal-fastA rendering engine tuned for buttery ink at any zoom.
  • Pencil-firstDesigned around Apple Pencil, refined to the millisecond.
  • Ours, end to endEvery line of the engine is original, first-party code.
  • iPad & iPhoneOne notebook, in your bag and on your desk.

Be first to
put pen to it.

Join the waitlist and we'll let you know the moment Pronotes lands on the App Store. No noise — just the one email that matters.

we'll only email you when it's ready. pinky promise.