The Jolly Phonics Lessons application is a digital tool that is designed to enhance the preschoolers’ reading and writing skills through synthetic phonics approach. This study examined the impact of integrating Jolly Phonics Lessons application into literacy lessons on the emergent reading and writing skills among kindergarten students, ages 4-6, in the United Arab Emirates through a comparative study between pupils (Group-A), whose literacy classes were integrated with the application, and pupils (Group-B) who were taught using the traditional method of teaching literacy. Mixed methods research design was followed to analyze the effects of integrating the application. The Phonemic Awareness Assessment Inventory (PAAI) tool, field notes, and artifacts were utilized to measure the development of students’ letter-sound identification, letter formation, phoneme blending and segmenting abilities. In addition, the paper compared the growth on phonics skills between students in Groups A and B. The results showed that students in Group-A outperformed pupils who received literacy instruction through traditional methods. The findings from the PAAI scores exhibited dramatic growth in letter-sound recognition and letter formation, and substantial increase in phoneme blending and segmenting abilities of Group-A. The T-statistic for differences between two means at 95% confidence revealed that there is a significant difference between the performance of students in Groups-A and B. Implications from this study highlight the positive impact of incorporating Jolly Phonics Lessons application into literacy classes on low-achieving students. On this bases, future research of Jolly Phonics Lesson application to support mixed-ability classes or students with dyslexia.