This work aims to provide insight into the development and progress of the progressive web applications and the related programming background through theoretical analysis and presentation on a practical example. Design of the development process will be shown, as well as the development of the application that will be based on standard web technologies such as HTML, CSS and JavaScript, and the design of database architecture applicable to the requirements of the functionality of the application. An example of a progressive web application development will be based on an application designed to help small business with their management. Application features will allow the user to deploy and manage employee work-time as well as provide statistics about work time spenditure and its usage. The application will rely on inputs from the mutual communication between the manager and the employee, which will take place primarily through scheduling and tasks that are manipulated within the given time frame and the employee's secondary feedback. Given that the functionality of progressive web applications is approaching the level of user experience achieved in native applications, their advantage i sin overcoming the problems of lack of constant connectivity with the data network facing conventional web applications.