A one-pass application (smart home key) that can be used like a card key at the common entrance of an apartment by using the Bluetooth function of a smartphone

※ Required access rights details
- Phone: Used for membership registration and access pass granting
- Nearby device: Used when using Bluetooth service
-Location: Provides a one-pass service to automatically open the common entrance door even when the app is closed or not in use when entering and exiting the apartment common entrance based on the current location
-Notification: Used for membership approval and renewal of accessible buildings

※ In order to use the GAYO24 app smoothly, it is recommended to install it on a smartphone with Android OS 5.0 or higher.

- Website: http://bluen.co.kr