Viewport tag for full zoom-out on load

Viewport tag for full zoom-out on load

I have the following viewport
<meta name="viewport" content="initial-scale=1,user-scalable=1">
On android, the page loads as if it were in a desktop - the whole page is
viewable and zoom-out to fit the screen
on ios - the page loads without zoom-out, and what is viewable is the
upper left corner of the page.
I've tried using width=device-width and width=1350 but nothing seems to work
What do I need to do to make the page load so it would fit the screen
fully no matter the screen size?