A Mobile Application for Child-focused Perioperative Education

The investigators developed a child-friendly mobile application to support accessible, interactive patient/caregiver education about pediatric tonsillectomy. This randomized controlled trial aims to evaluate whether the intervention reduces preoperative anxiety, improves patients' confidence and positive coping, improves caregivers' satisfaction and self-efficacy, and reduces call volumes from caregivers to the clinic after surgery compared to current standard care.