When I receive an email, I'm annoyed to see "Sent from my iPhone" or other phone mentions. Is there any way to hide it in Gmail (web interface)?
You have to know people do not remove this mentions for one of the following reason:
I would update mine with sth like
'sorry this message has been written from a phone'
I do not see this problem occurring when I use gmail (web interface) on my iphone through the Google search app, Chrome app, or Safari.
When Gmail is setup on your stock iPhone mail app then... Using iPhone, you can go into SETTINGS, then MAIL.CONTACTS.CALENDARS, scroll down to SIGNATURE, and edit the setting appropriately.
Source: iPhone user