For BrainBridge Srl - innovative startup based on Trento that operates in the field of high-level innovation ICT solutions - we have developed a Cloud APP for visitor management. It is a simple and intuitive solution that replaces the “old paper registers” used to record the visitors in a company. Through a reactive interface, optimized for both desktops and smartphones, it is possible to manage visitors' entrances and exits avoiding printing, filling in and storing old paper registers which, in general, do not comply with the provisions of the General Data Protection Regulation (GDPR). In the case of evacuation of buildings, the APP prepares the list of those present in order to facilitate the management and control of the persons to be evacuated. To access the APP you can visit https://guestbook-production.azurewebsites.net/ IDE: Visual Studio 2019, Visual Studio Code Technologies: Microsoft Asp.Net Core, Entity Framework Core, C#, SQL Server, Typescript, JavaScript, HTML 5, CSS3, Angular, Bootstrap, Node.js, DevExtreme