Voipeer

Free calling, videocalling & messaging
Available for iPhone and Android Also allows you call to landines and mobiles worlwide at extremely low rates.

Voipeer is an excellent form to call, share and chat with your family and friends in any time, wherever they are. Voipeer is a communications application Free, rich in features that let you make calls, video calls and chat for free, with other people who have Voipeer installed. It works over WIFI, 3G and 4G. Available for iPhone, iPad, iPod and most Android phones and tablets.