Purpose: This paper explored the use of mobile applications to ease paediatric patients' compliance with Magnetic Resonance Imaging (MRI) scans. Specifically, this paper evaluated the effectiveness of a newly developed MRI mobile application specifically designed for young children, aged 4 to 9 years, using the Mobile Application Rating Scale (MARS). Approach: This paper utilised a quantitative approach where the perceptions of a randomly selected sample of 58 parents of paediatric patients were collected through their responses to the MARS surveys. Findings: The study found that the application scored highly in most of the evaluated areas (4.3) with high mean values and low variance and standard deviation values indicating that the ratings are consistent and positive across all elements. Conclusion: The findings indicated that the app was well-received by users and recommended that future research and app. developers should build their applications based on research and informative data. Additionally, the study recommended the development of apps with interactive and animated features that are age-appropriate, informative, and can be customiszed according to the child's preferences, as well as providing children with options to choose their character's gender and incorporating more than one language option to enhance their experience.