Various studies (e.g., European Agency for Safety and Health at Work, 2007) have shown the highly detrimental effects of toxic environments on human health and organizational performance. For organizations, the implication about stress is that it leads to harmful behaviors that prevent managers and their teams from achieving goals. In the literature, many questionnaires based on a variety of metrics have been developed and tested to measure and assess the quality of work life (i.e., stress, organizational justice, etc.). The goal of our original research was to identify the most meaningful items and combine them into a unique score and an effective decision-making module. In this new paper, we report on the development of a new app that we developed and used for the first time to regularly take a kind of temperature of job stress in two companies. A long process of trial and error was necessary to be able to collect very confidential information from employees, both anonymously and longitudinally, to measure human risk in the workplace objectively and globally. As a next step, our goal is for the organization to be able to provide a preventive risk response in case of identification of deterioration of occupational stress.