"Pediatric Asthma Severity Score - Asthma Tracker" is medical mobile app designed to help medical practitioner to stratifies asthma attack severity by calculating paediatric asthma score. Based on the result of paediatric asthma score, the severity of asthma attack will be classified by "Pediatric Asthma Severity Score - Asthma Tracker" app into three categories, namely mild asthma attack, moderate asthma attack, and severe asthma attack. There are several features of "Pediatric Asthma Severity