Do you have to be logged in to add them to Watch Later? The same thing happens to me with Youtube, but only on iPad, not iPhone. The way I get the app open is,

Do you have to be logged in to add them to Watch Later? The same thing happens to me with Youtube, but only on iPad, not iPhone. The way I get the app open is, when I get to Safari, I try to open the page in desktop. Youtube app kicks open then.