The mobile application prototype that I created in my thesis solves the problem of service activities such as within car service, mobile service, computer service, bicycle service, ski service and tailoring. The app makes it easy to book an appointment, search for a business that includes the service you're interested in and displays the waiting time for each service. In addition, customers will be able to edit their bookings. Communication between the company and the client in the event of any issues such as changing parts of the car will be much easier than it is now. The business manager can check the queue at any time for each category of activity, such as car service (vulcanization, car wash, car power, etc.). The application also provides an insight into the list of all services ordered.