Planner
What does your house actually need?
A few questions about the building, and you get an access point count range, a sketch of roughly where they go, and the specific reasons the number is what it is. It takes about a minute.
It will tell you when the answer is nothing. A small single story house is usually covered by the equipment the internet company already supplied, and this says so rather than finding you a reason to buy something. What it never gives you is a price. A firm number on a wireless design nobody has measured is wrong often enough to either lose the job or trap us into honoring it.