In today’s technologically advanced world, the adoption of mobile applications has become a transformative force across various industries, significantly impacting the way businesses operate and manage their processes. One area where mobile applications are making a remarkable impact is in the realm of Occupational Health and Safety (OHS). The integration of mobile applications in OHS practices has ushered in a new era of efficiency, accessibility, and data-driven decision-making, elevating workplace safety standards to unprecedented heights. Occupational health and safety are paramount concerns for organizations as they strive to create safe and healthy work environments for their employees. Historically, OHS management relied on manual and paper-based processes, which could be time-consuming, error-prone, and challenging to track comprehensively. However, with the advent of mobile technology, organizations now have the opportunity to streamline their OHS protocols, enhance communication, and proactively manage workplace risks, all through the convenience of mobile applications. This research aims to analyze the effects between perceived ease of use and the attitude towards the use of the mobile application. Perceived usefulness of applications on Attitude towards the use of the app, attitude towards the use of the app on intention to use the application. The population of this research is the employees from the oil and gas industry in Malaysia. The theory of the Technology Acceptance Model (TAM) was applied. Perceived danger, perceived utility, perceived ease of use, and perceived intention to use were the antecedents for mobile apps. Employees’ intentions to use mobile applications were shown to be significantly influenced by their satisfaction with the information system and their inventiveness. In this study, devices were categorized as large or small according to their screen size, while respondents were categorized as young (<30 years old) or old (>30 years old) according to their age. A data collection of 545 responses to an online survey with 32 questions was obtained for analysis. The survey was distributed via email to respondents using a Survey among employees. The factors impacting the intention to use mobile applications were investigated using structural equation modeling. We looked at the moderating impact of the app’s trustworthiness on users’ intentions to use/adopt it. The variables’ responses for perceived ease of use, perceived usefulness, attitude towards the use of the App, trust (integrity) of the App, and intention to use/adopt the application varied significantly between the subgroups, according to the results. The study also showed the existence of moderating effects on the intention to use/adopt an app related to the trust integrity of the app. This paper discusses the survey, the findings, and the ramifications of the observations. This research contributes to the current literature by presenting empirical evidence on the importance of trustworthiness and user attitudes in mobile app adoption in the oil and gas industry. It also discusses the broader implications for improving workplace safety through the strategic use of mobile devices in OHS practices.