This study was conducted to see how Mobile Technology affects the achievement of Grade 8 Learners in Biology. The study employs the Student-led, teacher-led, and collaborative (STC) model in the learning process. The model also places emphasis on the importance of the presence of all three in all classrooms adopting mobile technology to promote better mastery of course content. The goal of the researcher is to know the status of mobile functions if it was extent in the classes especially during in this time of pandemic, the mean performances of the learners before and after using the mobile functions and their level of interest on Biology using these mobile functions. This quasi-experimental study aimed to determine all of those that have men-tioned. The mobile technologies are used to see the difference in the mean performances of the learners before and after using mobile functions. In order to gather data, the researcher crafted a pre-test and post-test to determine the mean performance of the learners before and after being administered with mobile functions. There are three groups of learners in the experiment: one which will use the student-led mobile functions, one which will use the teacher-led mobile functions, and one which will use collaborative mobile functions. The learners will be grouped based on their average grades in Science 8. The experiment was conducted beginning the 4th quarter of the school year according to the MELC given by the Department of Education on this time of pandemic. Based on the analyses conducted, it is concluded that the mobile functions were utilized to their fullest extent in the three sets of participants, the mean performance of the students also improved greatly, there is a significant differ-ence between the mean performance of the learners before and after using the mobile functions, there is a significant differ-ence between the mean performance of the learners after using the mobile function, and the level of interest of the learners greatly improved after using mobile functions in their classes.