Your privacy, kept simple

1. Calculator Data

That means we have no record of your attendance figures, no way to look them up later, and no way to share them with anyone else — because we simply never receive them in the first place. Close the tab, and the data is gone.

2. Information We Collect

Outside of calculator inputs, we collect only the minimum needed to run and improve the site:

Information you give us directly

• If you email us or use our contact form, we receive your name, email address, and whatever message you send — used only to reply to you.

Information collected automatically

• Basic, non-identifying technical data such as browser type, device type, approximate location (country/city level), and pages visited — collected through standard web analytics to help us understand how the site is used and fix problems.
• We do not use this data to identify you personally, and we do not combine it with anything you type into a calculator.

3. Cookies & Analytics

This site may use cookies or similar small files to remember basic preferences (like a dark/light theme choice) and to measure overall site traffic through analytics tools. These cookies do not contain personal information and are not used to track you across other websites.

Most browsers let you block or delete cookies through their settings. Doing so won't affect any calculator's ability to work — the tools run independently of cookies.

4. Third-Party Services

We may use trusted third-party services for analytics, hosting, or (if applicable) advertising. These providers may collect standard technical data (like IP address or device type) under their own privacy policies. We choose providers that are widely used and reputable, but we encourage you to review their respective privacy policies if you'd like more detail on how they handle data.

5. Children's Privacy

This site is designed to be useful for students of all ages, including school-age children, but it is not designed to knowingly collect personal information from children. Since calculator data never leaves your browser, no attendance information about a child is ever stored or transmitted. If you believe a child has submitted personal information to us directly (for example, via our contact form) without appropriate consent, please contact us and we will remove it.

6. Changes to This Policy

We may update this policy from time to time to reflect changes in how the site works or to meet legal requirements. Any updates will be posted on this page with a revised "Last updated" date. We encourage you to check back occasionally.