Viber for Android
is a user-friendly application that allows you to make free phone and video calls via WiFi. Not only can you chat one-on-one with friends and family, but you can also participate in conference calls. Its messaging app features image sending capabilities as well as an expansive emoji and sticker library to make conversations more exciting. To ensure the security of your conversations, Viber lets you manually manage your contact list, and the app automatically encrypts all of your messages.
Viber for Android is also available on BlackBerry
, and iPhone