Research It is designed using quantitative and qualitative approaches. The sampling technique used in this study was purposive sampling. The samples in this study were lecturers and students. Data collection techniques using questionnaires and interviews. Interviews were conducted by interviewing lecturers at several different campuses. The results of the interview show that mobile learning is the learning that students are most interested in because it can be accessed through their cellphones. Quantitative data analysis used the product-moment correlation test. The research subjects consisted of 110 students. The significance level of 0.001 (p <0.05) indicates that there is a significant influence between the adoption of mobile learning on student interest in learning during the Covid pandemic 19.

Education in the industrial revolution era 4.0 shows a change in the way of learning, thinking patterns and ideas of acting in high school students. One part that is inseparable from that is the use of mobile technology. This study aims to describe students' perceptions of the use of mobile technology as a tool for developing the right learning media in lecture activities at universities. This type of research is descriptive with a survey method of 100 students. The technique of collecting data uses a questionnaire. The findings show that students are very familiar with mobile technology, but the usage is still not directed according to the competencies to achieve in certain subjects. The results of this study also revealed that students have a positive perception of mobile technology. This report can be taken as a preparation for the design of a mobile learning model in higher education.

Modules are media or means of learning designed systematically and interestingly to achieve the competencies expected and used independently (Hamdani, 2011). There are several characteristics of the module including 1) Self Instructional; 2) Self Contained; 3) Standalone; 4) Adaptive, and 5) User-Friendly. (Depdiknas, 2008). However, the modules that have used so far are still textbook. Utilization of information technology in learning will create an interesting and meaningful learning process for students. (Maki.B, 2012). Need analysis is needed to find out what teaching materials are needed by students to assist in the learning process. So, teaching materials that will be developed must be by the characteristics of students. (Smaldino.S, 2008). One of the information technology-based teaching materials is E-Module. Based on the results of several studies explaining positive student respondents to the E-Module because E-Modules are considered more attractive, there are multimedia elements which will make learning more interesting. (Johnson Lim Soon Chong, 2005).

The rapid development of technology and science has led to the development of the education world today. One effort to improve education and learning quality is inseparable from the role of educators in implementing appropriate and efficient learning media that can support learning to improve students' cognitive development. One of the media that can be used is to utilize mobile learning applications. M-learning can make learning different because teachers and students can access learning, direction and applications related to learning wherever and whenever. It will make the learning process more interesting, increase attention to the material. The purpose of the research was to develop a mobile learning application to improve students' cognitive development. The research method was used namely Research & Development using ADDIE (Analysis, Design, Development, Implementation, and Evaluation) models. The results of this study indicated that mobile learning could improve students' cognitive development.