Tango vs Viber
A side-by-side look at Tango and Viber. For an in-depth review of either product, follow the links below.
Tango
Social & Communications
Tango is a free and open source, cross-platform program for video calling and instant messaging using Voice over IP. It offers encryption, group conversations, file transfers, customizable user profiles, and other features.
video-callingmessagingencryptionopen-source
Viber
Social & Communications
Viber is a free messaging and calling app for smartphones. It uses your phone number to connect you with people in your contacts and allows free calls, texts, photos and video messages over WiFi.
messagingcallingfreecontacts