FPSWizard is an easy-to-use mobile application that facilitates the selection and design of fall arrest systems and temporary edge protection for work-at-heights. Features of FPSWizard include calculation and verification of the adequacy of temporary fall protection systems including vertical lifeline systems, horizontal lifeline systems, and temporary edge protection. All calculations are done in compliance with the relevant standards, SS 607:2015 and SS EN 13374:2018. The calculations are based on the energy balance approach and are validated by experiments.