Privacy Policy

Last updated: September 17, 2026

The short version

When you use the calculator on this site, the numbers you type (debt balances, APRs, payments) never leave your device. All calculation happens in your browser. We do not see your numbers, do not store them, and do not transmit them anywhere. The only data that ever leaves your device is the CSV file you choose to download — and that file contains only the numbers you typed in.

What we collect

At the time this policy was written, this site does not have an account system, does not ask for your name or email to use the calculator, and does not set any cookies itself to identify you. The hosting provider and any future ad networks may set their own cookies; see "Third parties" below.

What stays in your browser

Third parties

Cookies

As of the date of this policy, this site itself does not set any cookies. The hosting provider (Cloudflare) may set technical cookies required to serve the site over HTTPS. When third-party advertising is added in the future, ad networks may set their own cookies; that will be disclosed and consented to before it happens.

Server logs

The hosting provider (Cloudflare) automatically logs standard request metadata — IP addresses, timestamps, requested URLs, referrer, and user agent — as part of operating the hosting infrastructure. These logs are not used to identify individual visitors to this site and are managed under Cloudflare's data retention policies.

Your rights

If you are in the EU/EEA, UK, California, or another jurisdiction with data-protection rights, you have the right to request access to, correction of, or deletion of personal data that a controller holds about you. Because this site does not collect personal data from the calculator (your inputs stay in your browser), there is no personal data held by the site operator that would be subject to such a request. For any personal data held by the hosting provider or future ad networks, please contact those parties directly.

Children

This site is not directed at children under 13 (or the applicable age in your jurisdiction) and does not knowingly collect personal information from children.

Changes to this policy

If this policy changes, the new version will be published on this page with an updated "Last updated" date. Material changes (such as adding a new third-party ad network or a new data-collection practice) will be reflected here before they take effect.

Contact

For privacy questions or requests, see the contact page.