Diagram your launch strategy on your dining table. Scribble a quick note on your desk. Sketch an idea for a mural on your bedroom wall. TouchDesk lets you overlay drawings and doodles wherever inspiration strikes.

What we love: Keeping TouchDesk open throughout the day as a place to jot down our thoughts. Drawing in the app is as simple as dragging your finger on any horizontal or vertical surface—and if you need more room, you can scroll the canvas in any direction.

Don’t miss: Customizing the color and size of the app’s pens, pencils, and paintbrushes. There’s support for images, too, so you can add reference photos to aid in your brainstorm.

Quick tip: Want to quickly switch which hand you’re drawing with? Just look at the canvas and pinch with that hand.