Okay, hopefully this caught your attention. There really is no catch – calls between Viber users are free, which means that you end up paying only for data. You still have to try it and see for yourself, but our guess is that the app will end up installed on many smartphones. The app functions in a pretty straightforward way. First you have to authenticate your phone number via an SMS code and then the app syncs up with your contacts and marks the ones using Viber with a small logo. This way you can easily see which ones you can call for free, while for users not on Viber you can send an invitation. But the real game-changer is that even when Viber is not running, you can still get a phone call and it is as simple as a single tap on the “Answer” button that pops up. Free text messaging is also expected down the road, but is not yet available.
Viber vs Skype vs FaceTime
One future problem might turn to be servers, but iMesh, creators of Viber, were confident that their dozens of servers across the globe will manage the load. How is this making any profit for the company? We are yet to see, but for the time being there are no ads in your Phone app, so you can go ahead and give it a spin! Let us know if you liked it in the comments.
source: Viber via TechCrunch