“Pocket Appendicitis Score - AIR, Alvarado, RIPASA Score" is a mobile app that use several scorings (appendicitis inflammatory response (AIR) score, Alvarado score, and RIPASA score) to diagnose acute appendicitis based on clinical and laboratory findings. "Pocket Appendicitis Score - AIR, Alvarado, RIPASA Score" app is intended to help medical practitioner, especially in surgery department, to diagnose patients with suspicion of appendicitis who come to emergency department with acute right abd