Are you using smart phones like Android and iphone then now no need to worry about your mobile bill you can be in connect with your friends 24*7 now with out paying even a single cent. You there was an app for the Android and iphone users to make call to your friends and family absolutely for free you can talk unlimited and text unlimited it is not at all matter where is your friend on this world. All you need is both of your devices are using this app. Viber is the app which makes all these for free (mobile calling, text messaging). This app is available for all the Android users and iphone users. You can download this app directly from your stores/market.
Viber Features :
Vibe is a completely free app for both android and iphone devices. The sound quality is really awesome than a regular call. by using this app you can talk and text your friend for free. Make sure that both devices are using the app. To use this app your device should connect with Wi-Fi network or internet connection.
Here is the quick video review of the Viber and its usage.
This is the most downloading app in both the Android and iphone market