viber is still operating. But I've never used it. Their landline calling system is 'package'-based, unlike the very straight forward Skype setup. On viber's web

viber is still operating. But I've never used it. Their landline calling system is 'package'-based, unlike the very straight forward Skype setup. On viber's web site there's not even a simple way of listing the countries they support. You have to 'search' for a country, and then you get an offer of various packages to use. Way too much hassle, and too limited (you have to buy a 'package' for each country you want to call. Not very convenient). For ordinary chats, groups, video conversations, file / movie / photo / album sharing etc. I use Naver Line, as nearly every Japanese do as far as I can tell.