The Domus mobile application and the homonymous web application are two applications for a fictitious furniture salon that connect to a MySQL database through which they communicate and exchange data. The mobile application was developed in the Android Studio program, using the Java programming language and the XML markup language, while the web application was developed on the HostGator server using the PHP programming language and the HTML markup language, with the additional use of the CSS style sheet language and the JavaScript programming language. The database was developed on the HostGator server using the phpMyAdmin administration tool. The mobile application was created to be used only by end users who can view the offer stored in the database and displayed to the mobile application using the PHP programming language, whose scripts send the necessary data from the database in JSON format to the mobile application using the Volley HTTP library for reading this data and displaying it in the mobile application's user interface. The user has the ability to create orders that are also sent via Volley in JSON format to the server, where PHP then decodes them and stores the resulting data in the database. The web application was created to be convenient for the administrator, but also for end users. It is divided into two parts, with the fact that the administrative part of the application can only be accessed by users who have administrator privileges. As in the case of the mobile application, the standard user can view the offer, but unlike the mobile application, they can only create orders by logging in. In the web application, the user also has the possibility to view his previously created orders. The administrator uses the admin panel to view all orders, and can also perform CRUD operations on the offer.