One-pass application (Smart Home Key) that can be used in the same way as card access to an apartment using the smartphone's NFC and Bluetooth

※ Required access permission details
- Telephone: Used to confirm with the management office regarding membership registration, passes, and access rights.
- Nearby device: Used when using Bluetooth service
-Notification: Used to control GAYO services and provide notices
- Location: Provides a one-pass service that automatically opens the common entrance door when entering or leaving the apartment common entrance based on the current location.

※ Selected access permission details
- Contact information: Used to add household members and pass issuance functions
- Photos and videos: Used when registering photos and videos
- Microphone: Used when using the elevator voice call function

※ To use the GAYO app smoothly, we recommend installing it on a smartphone running Android OS 5.0 or higher.

- Website: http://bluen.co.kr
- How to contact us:
If you cannot enter or exit or call the elevator, proceed to the door in front of the door ['Diagnosis' menu in the GAYO app -> Diagnosis and self-repair -> Send diagnosis details], then enter the time of malfunction and the location of the door in ['A/' in the GAYO app. You can receive detailed information by leaving an inquiry in the 'S Center' menu.