Introducing the cholera user-friendly app. As part of the effective implementation of the Ending Cholera: A Global Roadmap to 2030, the GTFCC developed a phone-based application containing technical information and practical documents to provide clear guidance and up to date information for early detection, monitoring and efficient response to cholera outbreaks. The application is designed for public health professionals from all sectors working in cholera control. The app is designed to be used offline to accommodate those working in the most remote areas.