Mobile marketing is a tactical tool of marketing communication that uses mobile technology to present ideas, products or services. Its advantage is that it allows immediate interaction with the target audience - customers, depending on their location or the situation they are in when they receive marketing information. The goal of this paper is to broaden knowledge in the field of e-commerce and m-commerce, to find out how confident are millennials in online shopping, to explore experience of Millennials with online shopping and to identify the frequency of online shopping by Millennials.