A Systematic Study and Comprehensive Comparison of Online Teaching and Learning (OTL) Apps for Measuring the Quality of User Experience

Due to the rapidly evolving Covid-19 pandemic, the world around us has radically transformed our lives to stay, learn, and work from home. During this crisis, almost all Universities and academic Institutions have adopted for quick transition from the regular classroom to online teaching and learning (OTL) through many applications (apps). However, the real challenges arise due to the lack of user experience with fully OTL apps, even in the most technologically developing world. Little research has assessed the availability and effects of OTL apps, hence, so far found as indecisive, just as research on the Coronavirus. Therefore, in this paper, various OTL apps that are used in academic institutions for the purpose of teaching and learning online are studied and compared to measure the quality of user experience with respect to several technical parameters. Initially, 45 features and 40 parameters of an OTL app are listed and classified into six different categories. Thirty-two OTL apps are identied, were studied, and compared based on all the features and parameters. Then, the worlds six popular apps are identied, a comparison and comprehensive study is done on them and systematic evaluation is accomplished to measure the quality of experience. Finally, a list of 41 Frequently Asked Questions (FAQs) and answers and several recommendations are provided. Based on such a comprehensive review, this paper provides the reader to understand the features, limitations, merits, demerits, technical aspects, security provisions, etc. while selecting the suitable OTL app as per the requirement and situation.