Yes, Viber is free.

To download Viber go to http://viber.com.

Viber to Viber calls or messages are absolutely free when selecting the Viber badge in your Viber contact list or the button which says 'Free Call' or 'Free Message' within the contact info of your Viber contact list. Viber does not charge your carrier nor Viber users.  Calls or messages placed from Viber to "non Viber users" will go through your local cell phone provider like a regular cell call. Once you and your friends download Viber you can talk freely, locally and internationally, and these calls will not show up on your phone bill.

All you need is an Internet connection: 3G or WiFi wherever available (3G may incur operator data charges or internet access fees. Check with your 3G provider to see your 3G plan). The bandwidth rate during a Viber call is approximately 240 KB per minute / 14 MB per hour.

If the party you are calling doesn't have an active internet connection or has their Viber application turned off when you call, the call will time out, and once the person reconnects to the internet, or once the person opens the Viber application, they will receive your missed call notification or the text message you've sent.  Viber will not automatically divert to your regular GSM (cell phone provider) service.

If you try to place a Viber call to a user who doesn’t yet have Viber, you will receive a warning message that the call is going to be placed as a regular paid call, or you can choose to invite the contact. This way, you can choose if you still want to place a paid call through your device's phone application or not.  Always use your Viber contact list to see who has Viber and check out the following examples:

When dialing via the Viber Keypad:

When calling via the Viber contact list (if you choose to opt out of this window, you will not be warned again):

If calling via your device's contact list or favorites list:

Viber looks and feels just like your regular phone, so you won’t have to waste any time figuring it out.

Features include:

1. Favorites: create a custom contacts list with the contacts of your choice.

2. Recents: view your received, missed and outgoing calls details.

3. Contacts: view your full contact list, identical to your smartphone's contact list.

4. Keypad: make a call by dialing the number or add new numbers to your contact list.

5. More: spread the word, invite your friends to Viber via SMS, Facebook and Twitter.

Since the features are already familiar to you – all you have left to do is call and text!

We’d love to hear from you! If you have any feedback, questions, concerns or just want to share a Viber moment with us, please find us on Facebook and Twitter:

http://facebook.com/viber
http://twitter.com/viber