This clinical trial, sponsored by the Chinese University of Hong Kong, addresses a significant gap in diabetes management for pediatric patients in Hong Kong, where no Chinese-language smartphone applications currently exist. The trial aims to evaluate the effectiveness of a tailored application that incorporates local clinical practices and cultural dietary considerations. Given the high smartphone penetration among the youth in Hong Kong, the potential market for such an application is substantial. If successful, this initiative could lead to a competitive advantage in the digital health space, particularly for companies focusing on diabetes management solutions. The trial's outcomes could also attract interest from investors and stakeholders in the digital therapeutics sector, emphasizing the importance of culturally relevant healthcare solutions.