The plain-English version first, then the details. Effective July 4, 2026.
Everything you type into our calculators — home prices, salaries, loan balances — is processed in your browser and never sent to us. We have no accounts, no signup forms, no email lists, and we don't sell leads. The only third party on this site is our advertising partner, described below.
Calculator inputs: nothing. The math runs entirely on your device. When you close the tab, your numbers are gone.
Server logs: our hosting provider (Cloudflare) records standard technical data such as IP address, browser type and pages requested, used for security and performance. We don't use it to identify you.
We show ads through Google AdSense to keep the calculators free. Google and its partners may use cookies and similar technologies to show ads based on your visits to this and other websites. Personalized advertising relies on the DoubleClick cookie.
You can opt out of personalized ads at Google Ads Settings, and learn how Google uses data at policies.google.com/technologies/partner-sites. Users in regions that require consent (such as the EEA and UK) will see a consent prompt before any advertising cookies are set.
We never pass your calculator inputs to advertisers — ads are served independently of anything you type.
Analytics: we currently use no analytics scripts. If that changes, this policy will be updated first.
Children: this site is general-audience financial and home-improvement math and is not directed at children under 13. We knowingly collect no personal information from anyone, children included.
Links: external links (like Google's opt-out pages above) lead to sites with their own privacy practices.
Changes: if we change this policy, the new version appears here with a new effective date. We won't quietly get worse.
Contact: questions about privacy → hello@roostcalc.com.
🤝 No signup. No spam. Your numbers never leave your browser.