The thesis examines the impact of mobile applications on the product purchase process for young consumers. Every year, the number of customers who buy online using a personal computer, tablet, or smartphone is constantly increasing. We live in an age where technology is constantly advancing; therefore, smartphones are increasingly becoming a preferable choice for e-commerce, and the entire process is known under the term mobile commerce. This thesis will describe the concepts of mobile commerce and mobile business and their interconnections. With the advanced development of mobile technology, mobile applications are emerging in great numbers, facilitating the performance of certain tasks. Mobile applications used in the purchase of retail products, the advantages and disadvantages of mobile applications and the use of the application in Croatia will be further explained in the course of this thesis. Research conducted through the survey method shows young people's perception of the use or impact of mobile applications when purchasing a particular product. The main motive for this research is to find out whether mobile apps facilitate the process of buying and whether they are used by young consumers on their smartphones when buying products. The goal is to investigate mobile app connectivity and the buying process and find out if mobile apps are contributing to the product purchase process. In the last chapter, based on the results obtained from the questionnaire, the appropriate conclusions will be drawn.