KaufKompass - The mortgage calculator your bank won't build

Most mortgage calculators are built by banks or brokers, so they show you what gets you approved, not what's actually safe. KaufKompass is independent: closing costs by German state, a real bank-style affordability check, a full amortization schedule, and the number most buyers never see coming — your remaining debt when the fixed-rate period ends. 100% client-side, nothing uploaded, no bank ever sees your numbers.