Customers get an exact estimate. Competitors get nothing to copy.
Most quote calculators ship the price table in their JavaScript. Apex's bundle has no rates in it.
Every page and request is encrypted in transit.
Rates live in a managed database, read only by server code.
Never shared, never resold to other shops.
Built on established cloud providers.
They can see the estimate a customer gets, just like they could by calling you. They cannot see your rates, markup or formulas, because those never reach the browser.