The 桃園龍德宮遶境 app is a travel and navigation tool designed for iPhone users. It enables users to track the current locations of the Four Deities and the designated destinations for the day, providing estimated distances between the two points. By granting access to your device's location services, the app can pinpoint your location for easy comparison with the daily destinations or the location of the Deities.

This app operates in the background to continuously perform GPS tracking, which may lead to faster battery consumption and reduced battery lifespan. It is recommended to fully exit the app when not in use to conserve battery life.