雪霸入園 is a free Android app developed by 雪霸國家公園管理處. Designed to assist hikers in navigating Snow Mountain National Park, this app provides an offline electronic map and allows users to download entry permits, reducing the need for paper usage. With the GPS functionality, hikers can check-in and check-out of the park, as well as send GPS coordinates to emergency contacts for quick rescue or to inform them of their safety.

The app requires several permissions, including access to phone, contacts, location, SMS, and storage. These permissions are necessary for emergency phone calls, importing contact numbers, map positioning, sending emergency messages, and storing relevant contact information. Users have the option to revoke or modify these permissions at any time through their device settings.

Please note that the app collects personal information such as name, phone number, and ID card number for the purpose of sending emergency messages and verifying entry permit downloads.