In Korea I think the de facto IM is Kakao, LINE is only third (after FB messager) [0][1]. [0]: https://www.statista.com/statistics/898254/south-korea-most-popu

In Korea I think the de facto IM is Kakao, LINE is only third (after FB messager) [0][1]. [0]: https://www.statista.com/statistics/898254/south-korea-most-popular-instant-messenger/ https://www.statista.com/statistics/898254/south-korea-most-... [1]: https://www.quora.com/Which-is-the-most-popular-messaging-app-in-South-Korea https://www.quora.com/Which-is-the-most-popular-messaging-ap...