Nowadays, technology is the fastest growing industry which can be applied in every segment of life, both private and business. One of the latest trends in technology application is in the tourism sector. In the Republic of Croatia, tourism is a sector which has a significant influence on economic stability and growth, hence it deserves a special approach and way of carrying out certain tourist activities. Therefore, technology has become an integral part of all kinds of communication, including communication between a tourism service provider and a tourist who is willing to pay for a particular service. As it comes to tourists coming from different parts of the world, technology is the only source through which they will get in touch with a person from another country. This method of communication is often expensive and unprofitable, so all communication goes via the Internet, which requires minimal costs. In addition, nowadays there are various portals and mobile applications whose purpose is to connect people from different parts of the world, displaying and sharing various content, reservations, making money transactions etc. Some applications discussed in this paper offer all the possibilities above which make them attractive and easy to realize tourism. Therefore, what is important for the application to achieve its purpose in the market are the numerous possibilities and the appropriate design that will enable easy searching and navigating on the application. The applications considered in this paper are Crotune, Pointer travels, Porthop, Sight run, Spotie and other less popular applications that are focused exclusively on only one tourist area. Among the applications, it is important to briefly explain the purpose of the portal in tourism, including portals Croatia.hr and Vision One.