This app is very good app. I like this app. When in your phone there is no money this app can be used. Whats call is used to free calling. So I liked it. I enjoyed it. This is the free app. But the data connection is always on to the calling to anyone. I am using it from 2 months. But the design of app is not so good. In that we can another money and there are various competition in this app. There are any money by per day scanning.