DrawSketchy started as an actual sketchbook — the kind you buy in a shop — that Ben and Liz carry when they're out somewhere, killing time together. One of them draws something, passes it across the table, and the other adds to it. Same book, same pen, back and forth.

The pen matters. It's ink. There is no undo, no eraser, no starting over. When your line goes somewhere you didn't plan, you don't fix it — you work with it, and usually the drawing ends up better for it. Every page in those books is full of accidents the other person turned into something.

Most drawing apps get this exactly backwards. Infinite layers, infinite undo, infinite colors — infinite ways to never finish anything. We didn't want a canvas with more features. We wanted the sketchbook, at a distance: for the weeks apart, for friends in other cities, for anyone you'd pass a pen to if they were sitting next to you.

So DrawSketchy keeps the rules of the physical book. One pen per book, chosen when you start it. Strokes are permanent. Turns are real — while it's their turn, you watch. And when a page is done, you both sign it and date it, like something worth keeping. Because it is.