Seoul City's 2026 guide says to purchase a pass in the Ddareungi app and scan a QR code to rent a bike. One-day passes for members and nonmembers include one-, two- and three-hour options, listed at KRW 1,000, 2,000 and 3,000 respectively. After riding, lock the bike and confirm the return is completed in the app. Check location and Bluetooth settings before renting and inspect tires and brakes before riding. Do not confuse the pass validity period with the per-rental time limit.