Privacy Policy

RunYourNumbers is operated by ShellRick Tech Pty Ltd ("we", "us", or "our"). This page explains what information we collect, how we use it, and the choices you have. We built RunYourNumbers so anyone can use our calculators without creating an account — registration is entirely optional.

Information We Collect

Information you provide

If you choose to register, we collect your email address and password (stored securely, never in plain text) to create your account. If you save a calculation, we store the inputs and results you submit (for example, principal amount, interest rate, and time period) linked to your account.

Information collected automatically

We use Google Analytics to understand how visitors use the site (pages visited, time on site, device and browser type, approximate location). This data is aggregated and does not directly identify you.

Cookies and similar technologies

We and our advertising and analytics partners use cookies, web beacons, and similar technologies to operate the site, remember preferences, measure performance, and serve relevant ads.

How We Use Your Information

• To provide and operate the calculators on this site
• To create and manage your account, if you register
• To save and display your calculation history, if you choose to save it
• To understand site usage and improve our calculators
• To serve advertising, including personalized ads where permitted

Advertising — Google AdSense

We use Google AdSense to display advertisements. Google and its partners may use cookies and similar technologies, including the DoubleClick cookie, to serve ads based on your prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to this site and/or other sites on the Internet.

You may opt out of personalized advertising by visiting Google Ads Settings. You can also visit www.aboutads.info to opt out of third-party vendor use of cookies for personalized advertising.

Third-Party Vendors

Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites. These vendors' use of advertising cookies enables them to serve ads to you based on your visit to our site and/or other sites on the internet.

How We Store and Protect Your Data

Account and saved calculation data is stored with Supabase (Postgres) using row-level security so that only you can access your own saved calculations. We do not sell your personal information to third parties.

Your Choices

• You can use every calculator on this site without registering or providing any personal information.
• You can request deletion of your account and saved calculations at any time by deleting them from your dashboard or contacting us.
• You can opt out of personalized advertising using the links above.
• You can control cookies through your browser settings.

Children's Privacy

This site is not directed at children under 13, and we do not knowingly collect personal information from children under 13.

Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date.

Contact Us

If you have questions about this Privacy Policy, you can reach us via the contact details on our website.