Contacts Hacker Prank App is an application for Android phones that allows you to change the contact information of the people in your phone. The application is designed to be used as a prank for fun, and it can also be used for personal purposes. The app is very easy to use and can be used by anyone, even by people who have never used it before.

The first thing that you will need to do is download the application on your phone. Once you have it, you will be able to make changes to the contacts in your phone. To make a change, just select the person that you want to change and select the new name.