LoveAlarm is the official mobile app based on the original webtoon and K-drama of the same name. It is available for Android devices and is free to download. The app allows users to experience the gripping moments of the characters Jojo, Sun-oh, and Hye-yeong as seen on Netflix.

One of the app's unique features is that it allows users to invite friends to ring their LoveAlarm. The LoveAlarm also rings when users enter specific location-based zones released from time to time. Users can change their LoveAlarm theme with the best drama sites, the best webtoon image cuts, and can join events to collect special badges. Additionally, the app has a webtoon links shortcut to make it easy for users to access LoveAlarm's webtoon content.