Today, mobile phones have become an important part of life, and we spend most of our time using them. It is a source and a means of entertainment, communication, education, marketing and information, but also job opportunities for millions of people. The pace of development of smart phone applications has accelerated very quickly, and the application market has become a global market, in which very large sums are generated, and it is not without investments in emerging companies focused on developing applications on smart devices.