If there’s one iOS feature that’s truly saved my bacon more than any other, it’s the iOS screenshot. For those who don’t know, pressing the sleep/wake button and home button at the same time on an iOS device creates a PNG screenshot that’s saved to the camera roll. This feature is invaluable for writing app reviews, documenting glitches, or testing websites in Mobile Safari.
Screenshots are useful in many situations, but iOS doesn’t offer a native way to mark up screenshots or photos that may require a bit more explanation. If only there was a simple way to circle a face in a picture, draw an arrow to an important map point, or add a caption to a funny photo. Fortunately there’s Skitch, a free iPad application from Evernote that makes annotating photos and screenshots painless.