Viber is a free iPhone app the lets you make free calls to anyone who also has the Viber iPhone application installed on their iPhone. Calls on Viber are free and can be made over WiFi or 3G. Viber-to-Viber calls *are* free though they use your internet connection and or data plan. If you are on a WiFi network, you have nothing to worry about, but do watch your usage on 3G unless you do have the unlimited data plan.
The Viber user interface is almost identical to the Phone app on your iPhone, with the exception of the purple theme, making learning how to use the app a no brainer. All your contacts, Favorites, Missed Calls and more are accessible from the app.
Setting up Viber couldn’t be simpler. You just enter your iPhone number, the Viber service sends you a text message with a code, and you enter that code into the Viber app. That’s it! No registration, no logging in or out, it really couldn’t be any simpler.
Although only calls to other Viber users are free, you can still use Viber to make and recieve calls to and from your non-viber friends using your phone’s minutes, and the app lets you send them a quick message asking them to install the iPhone app. Anyone that has the Viber app installed has the little Viber icon next to their name in the Contacts section.
Now here’s the rub. If all you can do for free with Viber is call AT&T iPhone customers, and you already get iPhone to iPhone calls for free from AT&T, it defeats the purpose of the app, at least for domestic calls for AT&T users. If you are calling internationally often to other Viber iPhone users, then this app might still be of value to you. Viber also has to compete with other services like Skype which has a large user base. Viber needs to work on adding non-iPhone users to their list of customers, including Android and Windows users to gain more traction going forward.
Here is a video demo of the Viber – Free Phone Calls app on the iPhone
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