나비엔 스마트 is a lifestyle application developed by KD Navien for Android devices. The app offers various features and services related to boiler and mat products.

For boiler products, the app provides 4-5 different operating modes depending on the product, including indoor heating, floor heating, hot water only, going out, heating repeat reservation, and 24-hour heating reservation. Users can enjoy warm heating and hot water at their desired time. The app also offers features like weekly heating reservation, quick hot water reservation, and AI learning of quick hot water usage patterns to automatically start preheating the boiler at the same day and time in the future. In case of any issues, users can use the smart diagnosis feature to get assistance from the app.

For mat products, users can control the devices remotely using their smartphones. The app includes a sleep mode feature to ensure comfortable sleep by adjusting the temperature. Users can also create personalized operating modes using the custom mode feature.

The app also allows multiple users to form a family group and control all registered products together. The developer, KD Navien, promises continuous updates for better service experience.

Please note that the app requires certain permissions for its functionality, such as location access for finding and connecting nearby products and notification access for control history, error information, and announcements.

Overall, 나비엔 스마트 provides convenient control and customization options for KD Navien's boiler and mat products, enhancing the lifestyle experience for users.