Falls from ladders account for about 20,000 injuries and 300 deaths in the U.S. each year, so it’s no surprise that ladder safety is getting its own month in March.

The National Institute for Occupational Safety and Health (NIOSH) has produced a new smart phone app that enhances ladder safety. The app uses visual and audio signals to make it easier for workers using extension ladders to check the angle the ladder is positioned at, as well as access useful tips for using extension ladders safely.