42 Software development for use in sports industry by athletes, coaches, nutritionists and doctors; Maintenance of software; Programming of educational software for sport industry; Development of computer software for use in the field sports; Design and development of software in the field of mobile applications for facilitating the collaboration between athletes, coaches, nutritionists, doctors, and sports institutions, namely, sport clubs, national sport federations and the Olympic committees; Hosting of interactive applications for use in field of sports; Development and design of mobile applications for facilitating the collaboration between athletes and coaches, nutritionists, doctors, sports institutions, namely, sport clubs, national sport federations and the Olympic committees; Development of application software for delivery of multimedia content regarding sports performances, athletes, coaches, nutritionists; Computer hardware development; Hosting services, software as a service, and rental of software for facilitating the collaboration between athletes and coaches, nutritionists, doctors, sports institutions, namely, sport clubs, national sport federations and the Olympic committees; Software development, programming and implementation for facilitating the collaboration between athletes and coaches, nutritionists, doctors, sports institutions, namely, sport clubs, national sport federations and the Olympic committees