Viber is a mobile app that lets users make free phone calls or send free text messages to other Viber users over 3G or WiFi connections. The company offers an iPhone app, and for the past few months a ...

Viber is an app that lets you make free voice calls to other Viber users over the internet. The app only hit the App Store recently, but version 2.0 is now available. Previously, the app only allows ...