Recently the developer has improved how you buy Viber Out credit by adding new payment options. You can also share the vibes by inviting an entire group of people to follow a given public chat. Moreover, the video calling has been improved by making it easier to use and more convenient. The Viber application was last updated on 4th of August, 2015.
The current version of Viber Messenger is 22.214.171.12477 and in 38 MB in size. You will need an android version 2.3 and above to install this app.
Download Viber here.