Privacy Policy

What this policy covers

This policy explains what information SellKitHub (sellkithub.com) handles when you use our free calculators: what stays on your device, what our servers see, and what our advertising partners collect. It applies to every page on this site.

Your calculator inputs stay on your device

Every SellKitHub calculator runs entirely in your web browser using JavaScript. The numbers you type are processed locally on your own device and are never sent to our servers, stored by us, or shared with anyone. There is no sign-up and no account, so we have no way to link calculations to you.

Information you send us directly

If you email us (for example at sellkithub@gmail.com), we receive your email address and the contents of your message. We use this only to respond, and we keep messages for as long as needed to handle your request. We do not sell contact information or use it for marketing.

Server logs

Like most websites, our hosting server records basic technical information in standard web server logs: pages requested, timestamps, browser type, and IP addresses (stored in anonymized form). These logs are used only for security, debugging, and understanding overall traffic, and are never linked to calculator inputs.

Cookies and advertising

SellKitHub is free to use and is supported by advertising. We use Google AdSense to serve ads. Google and its advertising partners may use cookies, web beacons, or mobile advertising identifiers to serve ads based on your visits to this and other sites (where you have consented), serve non-personalized ads, and measure ad performance and detect fraud. Learn how Google uses data from partner sites at Google's partner-sites policy page.

Your choices for ads

• Google Ads Settings (adssettings.google.com) — manage or turn off ad personalization.
• AboutAds choices (optout.aboutads.info) and the NAI opt-out (optout.networkadvertising.org) — opt out of interest-based advertising from participating companies.
• Browser controls — block or delete cookies in your browser settings; some features (such as remembering recently used calculators, which uses your browser's local storage only) rely on local browser storage.

Consent management (EEA, UK, Switzerland)

If you visit from the European Economic Area, the United Kingdom, or Switzerland, we ask for your consent before personalized advertising cookies are used, via a Google-certified consent management platform (Google Funding Choices). Where you decline, you will still see ads, but they will be non-personalized.

Analytics

We do not use Google Analytics or any other third-party on-site analytics that tracks you across the web. We review only aggregate, anonymized server statistics and Google Search Console data about how our pages perform in search results.

Data retention

Calculator inputs: never transmitted to us, so nothing is retained. Server logs: kept for a limited operational period, then deleted or aggregated. Contact emails: kept as long as needed to respond. Advertising data collected by Google is governed by Google's Privacy Policy.

Your privacy rights

• EU / UK (GDPR / UK GDPR): rights to access, correct, delete, restrict, or receive a copy of your personal data, to object to certain processing, and to withdraw consent at any time.
• California and other US states (CCPA / CPRA and similar laws): rights to know what personal information is collected, to request deletion or correction, and to opt out of the “sale” or “sharing” of personal information for cross-context behavioral advertising. We do not sell personal information.

To exercise these rights, contact us at sellkithub@gmail.com. Note that because calculator inputs never reach our servers, requests about calculation data cannot be fulfilled — there is nothing stored to return or delete.

Children's privacy

SellKitHub is a general-audience site not directed at children under 13, and we do not knowingly collect personal information from children.

International transfers

Our servers and our advertising partners may process information in the United States or other countries, protected under applicable legal mechanisms.

Changes to this policy

If this policy changes, we will post the updated version on this page and revise the date above.

Contact

Questions about this policy or your privacy: sellkithub@gmail.com or via our contact page.