42 Computer software development; Computer software development and computer programming development for others; Computer software development in the field of mobile applications; Computer software development in the field of sales, staffing, dating, psychology testing, profiling; Computer software development, computer programming and maintenance of computer software for psychology testing, face recognition, computer vision; Consulting services in the field of software as a service (SAAS); Developing computer software; Developing and updating computer software; Psychological research; Design and development of computer software; Design and development of computer software for the improvements of purchasing functions of business; Design and development of computer software for sales, staffing, dating, psychology testing, profiling; Design and development of computer game software and virtual reality software; Design and development of on-line computer software systems; Design, development, installation and maintenance of computer software; Design, maintenance, development and updating of computer software; Research and development of computer software; Research, development, design and upgrading of computer software