상주화폐 is a regional currency issued by Sangju City in Gyeongsangbuk-do, designed to stimulate local economic activity. It is available in both paper (10,000 won and 5,000 won denominations) and rechargeable prepaid card formats. The paper currency can be purchased by anyone over 19 years old, while the card can be issued to individuals aged 14 and older. Users can spend the paper currency at registered merchants within Sangju, while the card is accepted at any store equipped with IC terminals in the area, including restaurants and supermarkets.

The application offers users several benefits, including discounts on purchases and a 30% tax deduction during year-end tax settlements. Users can easily apply for the 상주화폐 card through the mobile app without needing to visit a bank or go through complicated account opening procedures. The app also allows for convenient fund reloading and provides access to balance and transaction history.