Developed by the local organizing committee led by Archbishop Peter Chung Soon-taick, the application is provisionally named “WYD 2027” and is available through Apple’s App Store and Google Play in Korean and English. (ZENIT News / Seoul, 10.14.2026).- With less than a year to go before World Youth Day 2027, organizers in Seoul have launched an official mobile application designed to help international pilgrims prepare not only for the journey to South.