The SEVENTEEN LIGHT STICK VER3 app is designed for fans of the K-pop group SEVENTEEN to enhance their concert experience with the official light stick. This free mobile application allows users to connect their light stick via Bluetooth, enabling various interactive features. Users can easily activate the connection by pressing two buttons for two seconds, ensuring their light stick is ready for use during events.

The app offers unique functionalities such as Concert Mode, where users can enter their ticket information to synchronize the light stick with stage effects during performances. Additionally, Self Mode allows users to customize the LED lighting colors through the app. Essential features include the ability to check ticket registration and battery levels before shows, ensuring optimal performance and enjoyment during concerts.