You can add a website icon to your iPhone Home Screen for quick access.
While viewing the website, tap 
in the menu bar, scroll down the list of options, then tap Add to Home Screen.
Note: The icon appears only on the device where you add it.
To add a website to an Android home screen, open Google Chrome and go to the website. Then drop down the menu by tapping the screen’s three-dot icon at the top right-hand corner. Select Add to Home screen.
