42 Scientific and technological services, namely, research and design in the field of standalone system architecture that allows for the development of highly effective, interactive and customizable learning applications; scientific and technological services, namely, research in the field of artificial intelligence and applied machine learning; software as a service (SaaS) services featuring software for creating and facilitating formative and summative assessments, digital exams, student engagement, quizzing, learning feedback, personalized learning, learning experiences, gamified learning, interactive teaching, trainings, e-learning authoring tools, customizable learning, social-emotional learning; design and development of software; rental of educational software featuring instruction in the fields of music, arts, sciences, technology, engineering, mathematics, physics, chemistry, earth and space sciences, biology, geography, meteorology, economic science, religious sciences, philosophy, psychology, ethical sciences, computer science, programming, social sciences, physical education, health, government, literature, business, languages, self-improvement, and professional development; maintenance of educational computer software; rental of software for creating and facilitating formative and summative assessments, digital exams, student engagement, quizzing, learning feedback, personalized learning, learning experiences, gamified learning, interactive teaching, trainings, e-learning authoring tools, customizable learning, social-emotional learning; maintenance of computer software for formative and summative assessments, digital exams, student engagement, quizzing, learning feedback, personalized learning, learning experiences, gamified learning, interactive teaching, trainings, e-learning authoring tools, customizable learning, social-emotional learning