not much in it
Not an appreciable or very noticeable difference (between two things being compared). Primarily heard in UK. I'm getting paid a bit more in my new role, but there's not much in it—it's more to have an impressive title on my CV.
not much in it
little difference between things being compared.not much ˈin it
used to say that there is little difference between two things: I won, but there wasn’t much in it (= our scores were nearly the same).