白沙屯 GPS 即時定位 is a free Android app developed by 李永裕. It falls under the category of Travel & Navigation and specifically belongs to the Maps & GPS subcategory. The app aims to provide the most up-to-date and accurate GPS location of the 白沙屯拱天宮媽祖南下北港朝天宮進香 event in the 2023 year of the Chinese zodiac.

The app utilizes GPS devices carried by their "human-operated devices" to collect information and track the location of the event. Users can choose to share their location information, which is used for analysis of the distribution of devotees. The app emphasizes the importance of not disclosing personal information such as real names, phone numbers, addresses, credit card numbers, or ID numbers for personal safety.

With the goal of providing a fast, convenient, and user-friendly platform, the app aims to assist believers and relevant organizations in successfully completing the event. However, it is important to note that satellite signals may result in positioning errors due to factors such as weather and power, for which the app will not be held responsible.