Want to do free phone call from your iPhone or Android phone? Try Viber, and I promise that you won’t ask for any other app. This is specially designed app that works extremely well in low bandwidth connection. Apart from free calling, you can also send text message to other phone having Viber installed in it. The sound quality of app is best among its rival, even it is better that Skype calls.
After you install and activate this app, it automatically browse your phone book and tells you how many contacts are using Viber. Also apart from Viber calling, you can call to any other phone number using its interface (but the call charges will not be free in this case).
The UI of app looks similar to iPhone so that you won’t get app like feeling while using it. While testing, I found that 1 hour of Viber calling utilizes about 10 MB of data which is not so much. Also, the voice quality of Viber is perfect in comparison to other apps.
Check out the app in action:
The real benefit of Viber comes when you are talking to a person sitting in different country. Video calling is something which is missing in this app. Hope developers will add this feature soon.