Tango is a voice over Internet protocol service and application that enables users to make free video calls, sent and receive text and multimedia messages, and make free voice calls to any other Tango user around the world. The company achieves this using a 4G, 3G or Wi-Fi connection.
Tango is a multi-platform application that is available on Android devices, Windows Phone, iOS devices and on Windows PC. Once users install the Tango application, it automatically recognizes and registers them via their cellphone number; eliminating the need for creating passwords and user names. Despite the fact that the services offered by Tango are free, users may incur data charges from their carriers when using the application of a 4G or 3G connection.