스마트키(Beta-Tester) is an innovative one-pass application that allows users to manage apartment access using NFC and Bluetooth technology on their smartphones. Designed for convenience, it opens common entrance doors automatically based on location, enabling seamless entry and exit. The app requires certain permissions for functionality, including nearby device detection and notification access, ensuring users receive timely updates and controls. For optimal performance, it's recommended for Android OS 5.0 and higher.