This app turns your iPad into a sketch board for your Mac

There are a ton of fun sketching apps for the iPad, but none of them offer the power of some drawing tools that you'll find on the desktop. It's releasing an app called Astropad that allows you to use your iPad as a sketch board that transfers over to apps on your Mac. The app makes your iPad display whatever is on your Mac's screen, and when you draw on it, your marks immediately show up on both your tablet and computer — there usually isn't any lag, which is pretty important while drawing. "What you see on the iPad is the same thing you're going to see on the Mac," Matt Ronge, one of the two developers behind Astropad tells The Verge.