- Coupang is the most popular shopping platform in Korea with more than 25 million MAU - OliveYoung is Korea's No. 1 Health & Beauty O2O service with 10 million product review - 11st is the most frequently installed shopping app by Koreans with more than 10 million MAU - Naver is Korea's No. 1 Internet search portal with more than 40 million MAU