Here's the honest answer: a real number needs real scope. Sticking a price on a page means either padding it for safety or lowballing to win the click — both waste your time. So instead we do a short requirement call, write it all down in a BRD — features, tech stack, hosting, the exact number — and only then do you get one fixed, itemised quote. No "it depends" six weeks in. You know the number before you commit, and it doesn't move unless the scope does.