Stray Kids Light Stick is an official application for the Stray Kids Light Stick. It allows users to register their ticket numbers and enjoy a more exciting performance through various lighting effects. The app is available on Android devices and is free to use.

With the Stray Kids Light Stick app, users can register their seat numbers, and the light stick's colors will automatically change according to the stage's lighting effects. Additionally, the app displays the battery level of the Stray Kids Light Stick, and users can check for updates.

The app requires some access permissions, including storage, camera, and location, but they are optional. The storage is necessary for recording information about the performance's lighting effects, while the camera is used for reading the QR code on the ticket for verification. The location is used for searching for the light stick via BLE, which only works when the location services are enabled.

Overall, the Stray Kids Light Stick app is an excellent addition to the concert experience for Stray Kids fans.