VoIP War: WhatsApp Vs FB Messenger Vs Google Hangouts Vs Skype Vs Viber
Skype
Skype came much early than its competitors and provides both voice and video based communication service. The service is free but a fees needs to be paid to call from Skype to phones over mobile operators. It is available across multiple platforms including Microsoft Windows as well as Linux.
Viber
Viber came much early than WhatsApp and provides more features than several instant messengers available. It has additional features that includes Viber Games and allows public chats. It has the facility to call non-Viber users at a minimal cost but for users its totally free.
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