What is the easiest way to make a shortcut to a website from your phone?

Question

Mobile devices

You need to make a shortcut type on the phone's desktop. So that when you click on the phone user gets immediately to our site. Please tell me the easiest way to implement. If this is not possible, then there may be some options.
EDIT.
I would like the client to come to our site, download something, install it and have a link to our site. PS. Yes, it is already very similar to the application, downloaded and installed.
Well, maybe something else like a simple icon like on the Windows desktop