KakaoTalk , commonly referred to as KaTalk (Korean: 카톡) in South Korea, is an instant messenger and online services platform operated by Kakao Corporation. It was launched in 2010 and the app is available on mobile and desktop platforms.
KakaoTalk is the most popular instant messaging app in South Korea, and since its debut in March 2010, the service has captured around 90 percent of the local market. Originally designed for messaging, it has evolved into becoming a super-app providing mobile payments and banking, taxi hailing, games and others.