The DNS Changer app for Android allows you to choose from a list of preconfigured DNS servers or to add your own. It is a free app that works on both Wi-Fi and mobile data networks. It is designed to be simple to use and does not require any root or other special permissions.

You can choose to use the DNS servers that are listed in the app. These servers are fast and reliable. The app provides you with the ability to speed up your internet browsing. This will help you find the fastest routes to travel on the internet. This will not affect your download/upload speed but it will improve your web browsing time.

The DNS Changer app also allows you to find the fastest DNS server based on your location.