How to bookmark my iPhone
Open up Safari and load a web site. ...
At the bottom of the screen you'll see an icon depicting an arrow that looks like it's trying to get away
from a square.
Tap that button and select options. ...
You'll be asked to choose a name for the homescreen icon.
How to bookmark Android Phones
Tap "Menu" and wait for the menu to appear from the bottom of the screen. Select "Add Bookmark"
Or tap from the top
Consult your Help page