Q: Will I be charged if I make international calls with Tango?
A: Tango uses your data network to place calls and works over 3G, 4G, and WiFi. Using WiFi to place calls is absolutely free. When you make calls over the 3G or 4G network, your charges will be based on the data plan you have set up with your mobile provider. Tango does not use your monthly minutes so there are no extra fees or international charges when calling a friend down the street or a family member in another country.