The STANLEYs Level App for the iPhone and iPad gives you a portable level in the palm of your hand. The app asks you to calibrate your device for the first use. Once completed, the digital level is available anytime, anywhere. Just like a real level, the bubble will indicate when youre straight. For ease of use, numbers indicate how close to center you are - the farther from 0, the farther from straight you become.With the app available in two styles, you can choose the look that fits your mood. Pick from the classic STANLEY cherry wood level or the modern yellow FATMAX Level. The digital level makes hanging objects a breeze. For fast projects or unexpected needs, you will always have the level device right in your pocket. Perfect for hanging, building, mounting, creating and more, turn to your STANLEY Level App.