3.5 Mice in a recent Macworld review (for the full version): http://www.macworld.com/appguide/app.html id=379389. The fast, fun, face-detecting self-portrait application! Simply indicate where you would like your face to appear in the frame and ArmsLength will TELL YOU which direction to point the camera for the perfect shot. Makes a great travel companion! --- NOTE: This is the LITE version of ArmsLength, which is funtionally equivalent to the full version.