3 ms·Or WeChat, which is quite big in China.by gbog 13y agoOr WeChat, which is quite big in China.balladeer 13y agoKakaoTalk is not even mentioned. It's one of the biggest player and probably more famous than anything in S Korea. ChatOn has some userbase too.dba7dba 13y agoSupposedly KakaoTalk has 90% market penetration in S Korea.