Skype

Skype - world's Most popular VoIP client in the world. This app uses almost half of the world, many use it for work, others for communication with family and friends. Say exactly only one thing - this app is the best and most recognized in the world, besides you will be able to make calls on this app, but the regular rooms in other countries. Recharge as easily through the official website of the developer. Chat with your family and friends around the world.