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Privacy policy

Last updated 3 October 2026

This policy explains what information Sumtrail (sumtrail.app) collects and how it is used.

Numbers you enter

All calculators run inside your browser. The salaries, dates, amounts and other values you type are processed on your device and are never sent to our servers or stored by us.

Information collected automatically

Like most websites, our hosting provider (Cloudflare) processes basic technical data such as your IP address, browser type and the pages you visit, to deliver the site and protect it from abuse. We may use privacy-friendly analytics to count visits. This data is not used to identify you.

Advertising and cookies

Sumtrail is supported by advertising. Third-party vendors, including Google, use cookies to serve ads based on your previous visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and others.

You can opt out of personalised advertising by visiting Google Ads Settings, or opt out of some third-party vendors' cookies at aboutads.info. You can also block or delete cookies in your browser settings.

Children

Sumtrail is not directed at children under 13, and we do not knowingly collect information from them.

Links to other sites

Our pages may link to other websites. We are not responsible for their content or privacy practices.

Changes to this policy

We may update this policy from time to time. The date at the top shows when it was last changed.

Contact

Questions about this policy can be sent to contact@sumtrail.app.