React Native applications to support cryptocurrency trading

Cryptocurrencies are constantly evolving and places are being sought for their application. Many people buy and sell them with the vision of easy profit, and so many cryptocurrency exchanges have sprung up. Subsequently, these exchanges began to provide users with their application programming interface for developing their own trading application. Nowadays, many people are constantly using mobile phones and are used to accessing various applications from it. Currently, the iOS and Android operating systems are fighting for the favor among users. Programmers must therefore develop two applications for each operating system separately. However, the React Native framework tries to solve this, one of the advantages of which is that it allows writing the same source code for both operating systems.The bachelor's thesis deals with the development of an application for trading in cryptocurrencies using the React Native JavaScript framework. The main goal is to design this application with a user interface inspired by existing applications. Subsequently, the application is created and the implementation is described together with the technologies that are implemented in the application or have been used to facilitate development. The work also describes the already functioning web and mobile applications for trading in cryptocurrencies and explains the issue of cryptocurrencies.The contribution of this work is an approach to the development of a mobile application in React Native and also a description of the principle of operation of cryptocurrencies.