PopAGraph is an app that does basically one thing really well: It sets off elements within a photo to let you draw attention where you want it. You can apply filters, for example, to the background behind your smiling subject . . . and then crop portions of the photo with the use of frames, giving the impression that a photo element extends beyond the bounds of of the scene. It’s cool, easy, and worth a look. Read the full review at MacNewsWorld.