Ladder Safety
Published in academic literature
App Summary
App Screenshots















Detailed Description
Functionality & Mechanism
Developed by the National Institute for Occupational Safety and Health (NIOSH), the Ladder Safety app facilitates the correct angular positioning of extension ladders. The system leverages a device's internal sensors to provide multimodal feedback—visual, auditory, and vibrational—guiding the user to the optimal setup angle. The interface also integrates graphic-oriented reference materials, safety guidelines, and checklists for ladder selection, inspection, accessorizing, and use. The application is designed for rapid, on-site deployment and is 508 compliant.
Evidence & Research Context
- The app's angle-setting technology is based on patented NIOSH research identifying suboptimal ladder angle as a significant risk factor for slide-out events and associated falls.
- Integrated guidance materials are aligned with industry safety standards through partnerships with the American Ladder Institute and the American National Standards Institute (ANSI) A14 committee.
- The associated research contextualizes the tool's development, noting that falls from ladders are a leading cause of occupational injury and death in the U.S.
- The application's design and research-to-practice translation have been recognized with multiple awards, including from the Department of Health and Human Services and NIOSH.
Intended Use & Scope
This application is designed as a performance and training tool for occupational ladder users, employers, and safety professionals. Its primary utility is the on-site verification of correct extension ladder setup angle. The tool serves as a procedural aid and reference; it does not replace comprehensive safety training, physical equipment inspection, or professional judgment regarding environmental hazards.
Studies & Publications
Peer-reviewed research associated with this app.
NIOSH Smart Phone Application Improves Ladder Safety
National Institute et al. (2014) · NIOSH Publication
Describes the research-driven development of this appIn the Media
Ladder Safety App
NIOSH developed Ladder Safety, their first mobile application, to improve extension and step ladder safety using smartphone technology that delivers interactive tools and training resources to individual users. The app features an angle measuring tool that uses visual, sound, and vibration signals to help users set extension ladders at the proper 75-degree angle and check ladder verticality. The award-winning app is available as a free download in English and Spanish for Apple and Android devices.
NIOSH Ladder Safety App Evolves with User Feedback
NIOSH developed the Ladder Safety App to prevent ladder-related injuries, which affect more than 500,000 people annually in the United States with an estimated cost of $11 billion. The award-winning app has received more than 52,000 downloads as of 2015 and earned a merit award from the Digital Health Awards. NIOSH updated the app based on user feedback to include step ladder safety features and additional interactive tools.
NIOSH Ladder Safety App Evolves with User Feedback
NIOSH developed the Ladder Safety app to address the more than 500,000 annual ladder-related injuries in the United States that cost an estimated $11 billion per year, using interactive tools and user-friendly guides. The app has achieved significant success with more than 52,000 downloads as of 2015 and has earned recognition through a merit award from the Digital Health Awards. NIOSH recently updated the application based on user feedback to include step ladder safety features and additional interactive tools.
NIOSH Ladder Safety Smart Phone App is a Finalist for Innovation Award
NIOSH researchers Peter Simeonov, Hongwei Hsiao and John Powers developed Ladder Safety to address major causes of ladder falls, using smart phone technology to provide instant feedback on extension ladder angular positioning. The app features a multimodal angle indicator based on a patented ladder positioning concept and includes "Selection" and "Inspection" tools with checklists for proper ladder use. Available free in English and Spanish, the app has been downloaded more than 18,000 times since its June 2013 release.
Safety: New NIOSH smart phone app addresses ladder safety
The National Institute for Occupational Safety and Health (NIOSH) developed the Ladder Safety smartphone app to prevent construction injuries from ladder falls, using visual and audio signals to help workers check proper ladder angles. "The ladder safety app is an innovative way to help keep workers safe and a tool to reduce these preventable injuries," said NIOSH Director John Howard, M.D. NIOSH collaborated with DSFederal and industry stakeholders including the ANSI A14 committee and American Ladder Institute to develop the app based on a patented multimodal inclination indicator.
Newsline
The National Institute for Occupational Safety and Health (NIOSH) developed the Ladder Safety smartphone app to help workers prevent falls from extension ladders, using visual and audio signals to check ladder angles and provide safety tips. NIOSH announced the app's release on June 17, noting that misjudging ladder angle is a significant risk factor for falls from ladders, which are a common source of preventable construction injuries. The app is available for free download on iPhone and Android devices and includes references and safety guides for ladder selection, inspection, and use.
App Information
Category
Evidence Profile
Published in academic literature
Platforms
Updated
Feb 2022
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