I love their tagline: Say it with a picture, skip the 1,000 words. Need to markup an image and send it to a colleague? Napkin can do that for you.

Napkin is the ideal image markup application for OS X. Designers, software developers, artists, educators, journalists, or anyone that needs to annotate images will love how painless and powerful Napkin is. You’ll be creating engaging results in no time. Watch our quick video to see how Napkin will make your life easier.

~ Napkin for OS X