Create a DNS Changer App for Android that connect automatically on startup

Hi,

I need someone to built a simple DNS Changer App for Android. The App must connect automatically whenever the Phone is restarted or turned ON.

There should be a button on the setting page which should enable or disable auto connect feature.

If you can do this give your bid on how much time you need to build and what is your budget will be.

I am happy to answer any question related to this project.

Thanks