Creating an app which simply contains a link to the site index page

Hello,

I would like to create an app which does not necessarily have to be available in Play Store or the lik. It is ok for it to be downloadable on my website.

All it should contain is a link to http://www.mydomain.com.

Do you know of something that would help me? Maybe you do have a solution/plugin for that?

Thanks for your help,

Fabian