Send free messages and make free calls to any device that has Viber, on any network, from your Android. Viber lets you make free phone calls and send text, sticker, photo, voice and video messages for free to anyone who also has the application installed.
Viber integrates with the Android OS to give you the best experience and performance. It syncs with your contacts, detecting which ones already have Viber. Simply select a contact and talk for free.