Samsung Pay currently has 2.59 million users in South Korea, where the mobile payment system was used 41 times per user on average in March, making it the most used mobile payment app in the country.
WiseApp, a local mobile trend and app ranker, surveyed Android smartphone owners for the month of March. iOS was excluded due to low usage in the country for the OS.
Shinhan's app card was the runner-up with 1.5 million and Hyundai Card came in third with 1.23 million.
Kakao Pay and Naver Pay, run by the country's largest chat app vendor Kakao and largest search engine Naver respectively, which have a sizable number of users of their own, were excluded because access to those services was not limited to apps.
Samsung announced in February that Samsung Pay had 5 million active users and hit $500 million in transactions.
Samsung Pay boss Injong Rhee told ZDNet that the payments solution will support more commercial activities going forward. Since then it has added withdrawing and depositing features for banks and is covering more and more merchants.