It is an app that allows you to change your DNS domain name, and it is a very easy and simple app to use. If you want to know more about DNS, you can read this article, and you can also find many more articles about DNS and other protocols on the Internet. You can also use it on your phone, and it is a useful tool for people who want to unblock the restricted web content. It works on both Wi-Fi and Mobile Data, and it is a very powerful tool that doesn't require root. It is a very simple and easy-to-use app, and you can change your DNS domain name easily.