I insta this app im my and use it for 1 week. I am totally disappointed by using this app. The calling and voice quality is very worst. I use to call to my parents from this app. Sometime no voice is sent from here , only voice come here. And the most disappointed thing is that this app shows lots of ads . I am totally unsatisfied after using it. I still have 15000 whatscall credit , it is not useful because there voice quality is very poor and at very low rate. This app developer must improve the app to work proper. But now the app is not in working condition