AutoMath

Privacy Policy

Last updated

Short version

We try to handle as little data about you as possible. We don’t ask for accounts, we don’t run our own servers for the calculators, and the math you do here happens inside your browser.

What stays on your device

When you fill in a calculator (Coast FIRE, Standard FIRE, etc.), we save your inputs to your browser’s localStorage so the next time you visit, the numbers are still there. This data:

  • Stays on your device. It’s not transmitted to us or anyone else.
  • Can be cleared at any time through your browser’s site-data settings.
  • Is keyed under names like automath:auto-loan:v1 if you want to inspect or remove it manually.

What we collect

  • Aggregate page-view analytics via a privacy-friendly analytics provider (currently planned: Plausible or Cloudflare Web Analytics). These do not use cookies and do not identify individuals.

What we don’t collect

  • No login data — there are no accounts.
  • No payment data — none of the calculators currently cost anything.
  • No retargeting cookies, no fingerprinting, no third-party tracking pixels.

Third-party services

The site is hosted on Cloudflare Pages. Cloudflare logs basic request data (IP, user-agent) for the duration needed to deliver the site and protect against abuse, per Cloudflare’s privacy policy.

If we display ads (via Google AdSense or a similar network), those networks may set their own cookies. We’ll add a banner if and when that happens.

Affiliate links are marked Sponsored and use rel="sponsored nofollow". Clicking them takes you to the partner’s site, which has its own privacy policy.

Your rights

You have the right to know what data we hold about you and to request deletion of any personal data. Because your inputs stay in your own browser and we run no accounts or mailing list, we typically hold no personal data about you at all. If you have a question, email hello@auto-calculate.com with the subject line “Privacy request” and we’ll respond within 30 days.

Changes to this policy

We’ll update this page when our practices change. The “updated” date at the top reflects the most recent revision.