Everybody like to make call with their smartphone using their 3G network but sometime we have to pay a high amount for that but what if you can make calls through your 3G network without any cost or without registering for any other thing. So , now you would be able to make an received free calls on your iPhone with Viper Voip iPhone app and as amazing this is absolutely free.
I know that you would think that whenever you hear this kind of offer then there are always some strings attached with it and somehow you end up paying for those free calls.But according to TWAW they have not found any catch for Viper Voip iPhone app till now and till now it looks 100% free.And according to its initial users the quality of calls is also not that bad which again is a very big plus point of this app.
If this app works fine for all the iPhone users then this would really hurt Skype and every other VoIP provider.Still there is one thing you need to keep your eye on which is you should make sure you should not overuse you allocated kilobytes of your service provider.
You can check out more details about the Viber Voip iPhone app from here.