Finally, now available for Android, you can call or text other Viber users. Free international calling and the ability to use Wi-Fi to place calls is one of its best features. The basic requirement for using Viber is that the person you’re calling or texting must have Viper on their Android phone or iPhone. So, if you haven’t used it yet, give it a try and let me know what you think.
All Viber features are 100% FREE and do not require any additional “in application” purchase.  Read the privacy policy.
Viber app for Android: Download here