When you are in call voice changer do you want to change voice while calling your family or friends so have fun when doing it. By choosing anonymous voice and many other free voice effect with no charge in call, all what you need to do is activate the app and enjoy this best changing voice in mobile call it allow you to do for example monster or female voice changer in phone calls. Its an amazing funny voice changer great to prank calls. How to use 1. In call voice changer set on 2. In the table choose the voice effect you'd like. 3. Press the red button to test the effect. 4. Then and at last make call and choose your changed voice in mobile call 5. You can also record the sound and share it with friend via Facebook, WhatsApp or mail. And feel free to contact us if there is any request and please rate 5 stars to encourage us to do more for you.