Privacy Policy

Last updated: August 13, 2026

What data we collect

None. All calculations happen locally in your browser using JavaScript. Your birth date, wake time, bedtime, and results are never transmitted anywhere. The site has no database and no server-side logging of your activity, and there is no way for us to associate a visit with a person.

Local storage

The only thing we ever store on your device is your theme preference (light or dark), under the key ascc-theme in your browser's local storage. It holds a single value — "light" or "dark" — never personal data. You can clear it at any time by clearing your browser's site data; the site works exactly the same without it.

Cookies

None. We do not set cookies, first-party or third-party. There are no consent banners and no cookie walls, because there is nothing to consent to. The Cookies page says the same thing in more detail.

Analytics and tracking

None. There are no analytics scripts, no session recordings, no fingerprinting libraries, and no advertising identifiers. We do not even run privacy-friendly or self-hosted analytics — counting visits is simply not worth tracking anyone in any way.

Third parties

None. The site loads no CDNs, no remote scripts, no web fonts, and no third-party embeds. Every asset is served from ageandsleepcalculator.dpdns.org. When you visit, the only requests leaving your device are to this site itself.

Children

Because we collect no personal information and require no accounts, the site is safe for anyone to use without special child-specific data handling. We never knowingly collect information from children — or from anyone else, for that matter.

Data retention and deletion

There is nothing to retain and nothing to delete. Since we never receive your data, there is no storage to purge and no account to erase. If you clear your browser's local storage, the theme preference disappears too.

Changes to this policy

If this policy ever changes, we will update this page and note the date above. The core principles — collect nothing, store nothing, track nothing — are the reason this site exists and are unlikely to change.

Contact

Questions about privacy? Email minitoolszz@gmail.com and we will reply within a few business days. You may also want to read the Terms of Use and the Disclaimer.