Viber is a cross-platform instant messaging app used on smartphone. It works along with 3G and WIFI networks. Viber first launched on the iPhone; and Android test version came out in May 2011, and then the official launch was on July 20. The users don’t need to register or pay, this character makes it stand out in many similar applications. Free calls can be made anytime at anywhere as long as the app installed by both sides. You can transmit texts, audios, videos and pictures. Viber currently supports multiple languages. And you should know that Viber doesn’t cost call costs, it uses network traffic and only generate traffic charges. So click the button below and download the app now, enjoy free calling! Lastest Update: Recently, Viber has increased the maximum number of participants in group calls to 20 so you can chat with more of your friends at once. Besides,  you can now trim videos so that you only share exactly the right part of your creation.  FEATURES: Make free high-quality calls - both video and aduio. Push notifications make sure you can get any messages. Sticker Market provides mounts of stickers and animated stickers. Users can play kinds of interesting games with Viber characters to kill time. Send texts, pictures, voice messages, contacts, locations, links, stickers, emotions and more to your friends and family. Create groups and "like" each other's texts and follow Public Chats, forward and share information on social platform. Viber now support Android Wear. Send and receive messages from watches. And you can also use it on Windows and Mac. Viber is the kind of messaging app that you may not want other apps once you’ve chatted with others. It has all the features of messaging apps and more specific ways like stickers and doodles to add on during te conversation. And now you can follow your favorite celebs, bands, pop stars, fashionistas and more on Viber. No registration or invitations required. Use 3G or Wi-Fi to enjoy best-quality calls on mobile devices. And it’s totally free.

1、The first time you start it, Viber will prompt you to turn on Push notification in order to work properly, if it is already on, click OK.

2、Come to the welcome screen, click "Continue" to continue.

3、Viber will ask you to read your local address book, in order to use it normally, click "OK" to confirm. Fill in your phone number and click "Continue".

4、Receive the SMS that sends you the confirmation code, fill in the 4-digit confirmation code to complete the verification.

5、Open Viber, you will see all your contacts in your address book, if someone has used Viber, there will be a purple "Viber" icon after the name, click it, you will see a purple "Free Call" label after the phone number, click it to start a free call.