Email, Messaging, & Video Calls Texting & Messaging How to Install Viber for Android Getting your smartphone ready for free calls with Viber by Nadeem Unuth Freelance Contributor Nadeem Unuth is a former freelance contributor to Lifewire who specializes in information and communication technology with a focus on VoIP. our editorial process LinkedIn Nadeem Unuth Updated on November 19, 2019 Westend61 / Getty Images Texting & Messaging Email Texting & Messaging Video Calls Tweet Share Email There are several VoIP apps for Android that make free calls over an internet connection, either using Wi-Fi or a data plan. A popular VoIP app is Viber. Viber doesn't require a username and password. It uses your mobile phone number and integrates it into your contact list. Viber has been around long enough to refine its approach and build a following; it has a large user base. With Viber, it's simple to get set up and make calls. Instructions in this article apply to Android phones with Android 4.1 and up. What You Need to Install Viber Viber requires a compatible and supported smartphone. Most Android devices are compatible and Android devices are most numerous in the list of supported models. This is because Android is an open operating system with respect to hardware integration and software development. The directions to install and configure Viber on iPhone and iPad are similar to the installation process on Android devices. However, the iPad is only partially supported. Viber also requires an internet connection using either Wi-Fi or cellular. Viber makes calls through Wi-Fi hotspots, including at home and at the office, and through a data plan for calls while you're on the move. If you don't have an unlimited data plan, you'll pay for each MB of data you use on calls and messages. Viber support says the app uses 240 KB of data per minute of use, up and down. That makes 14 MB per hour of communication. Before you can make calls, you'll need is a list of buddies. You can’t make Viber calls or send Viber messages to people who don’t use Viber. Download and Installation To install Viber on an Android phone: On the Android device, open Google Play, then search for Viber to go to the Viber app page. Tap Install to automatically download and install the app. Tap Open. In the welcome screen that lists the features of the app, tap Continue, then enter your mobile phone number. Viber automatically detects your location and area code. If the location isn't correct, choose the correct location. When prompted for permission to allow Viber access your contact list, either accept or deny permission. Viber will send you an activation code in a text message to verify that you are the owner of the phone number. Enter the four-digit code and start making calls to your friends. Get the Most out of Viber You'll save money with Viber if you have a number of contacts that you call frequently (such as family, friends, and colleagues) and that use smartphones. Ask them to install Viber, and the calls with them will be free, especially if you make calls using Wi-Fi hotspots. You can also organize group messaging in Viber and turn the app into a collaboration tool.