In this paper, the author shares the knowledge and experiences about a mobile health application named HWOW (Healthier Work for Office Workers) which is designed as a means to support a healthier work for office workers (gold or white-collar employees working relatively inactive at the computer or the desk all day). In this scope, initially, some important definitions and concepts related to electronic health (e-health), mobile health (m-health), and relevant applications are provided. What's more, all-inclusive specifics are provided on the subjects of the answers for the questions of what, how, and why regarding HWOW, the information about HWOW's development process, the results of the polls to decide on the minimum viable product, the differences of HWOW from related applications, and the features of HWOW. Lastly, the current status and plans for HWOW are presented. In the contexts of software engineering for health and mobile health, the author thinks this paper is going to be beneficial for both product developers and relevant researchers.