Modern time is called the era of digital technologies, since a large number of actions of the average person occur precisely with the help of such widespread electronic devices. Traveling home, shopping, calculating and using finances, creating and entertaining, reading the news is by no means a complete list of the actions that we carry out using our smartphones. However, all this would be simply impossible without software, namely special applications that expand the capabilities of the phone several times. It is not surprising that modern companies that keep up with the times are trying to develop applications of an individual nature to make life easier for their customers and build loyalty around their brand.