Do you mind to disclose your country or continent where Viber (or video chat) is popular. I can only speak of myself, in central Europe Skype (voice, video) an

Do you mind to disclose your country or continent where Viber (or video chat) is popular. I can only speak of myself, in central Europe Skype (voice, video) and WhatsApp (group chat) are popular. Facebook is increasingly used by elder population and shunt by younger generations. As I avoid WhatsApps (it sucks IMHO ..no Web and Tablet support, shady company), I would welcome any competitor.