홍수알리미 is a free lifestyle app developed by 홍수통제소. It provides real-time flood information nationwide, based on data such as rainfall, river levels, dams, and weirs, provided by the Ministry of Environment's Flood Control Headquarters. By selecting the desired information, users can easily receive alerts and prevent accidents caused by flooding.

The app offers several key features. Firstly, it provides real-time hydrological data, including rainfall, river levels, dams, weirs, and rain radar. Users can stay informed about the current water conditions in their area. Secondly, it offers flood situation updates, including flood forecasts, road and railway conditions, dam discharges, weir discharges, and flood information for designated areas. This helps users understand the overall flood situation and take necessary precautions. Lastly, the app allows users to customize their settings, such as setting their preferred locations of interest and enabling notification services for flood situations.

In addition to its existing features, 홍수알리미 has recently added a full-screen video player for an enhanced user experience.

For detailed usage instructions and inquiries about the 홍수알리미 app, users can refer to the "Settings" > "Program Information" > "Help" section within the app.