Viber is an app that lets users send unlimited messages and pics over wi-fi or mobile networks. What separates it from other similar apps is the ability to call local and international non-Viber numbers using pre-paid credit. For someone like me who rarely makes phone calls or for someone who does not want to be tied down to a provider, Viber Out is a really neat idea, especially since credit can be purchased just like any other in-app content using your payment information.
Phone calls are taxed by the minute and vary depending on the country your calling, but a handy list shows you just how much everything costs.
All in all, this is something to consider if you are a poor student who barely has any cash for video games or someone who only makes brief calls.
Viber is currently available for download on the Google Play Store.