Privacy Policy

Last updated: 2026-04-21

bestsodcalculator.com (the “Site”) is operated by Obsidian River, Inc.. This policy explains what information is collected when you visit the Site, how it is used, and what choices you have.

Information We Collect

We do not require you to create an account or provide personal information to use the tool on this Site. The tool runs entirely in your browser — the values you enter are not transmitted to our servers.

Our hosting provider (Amazon Web Services) and our analytics and advertising partners automatically collect limited technical information about each visit, such as IP address, browser type, device type, referring page, and pages viewed.

Cookies and Similar Technologies

Cookies are small text files stored in your browser. The Site itself may use localStorage to remember preferences such as theme. We do not use this storage for tracking.

Third-party services we use (described below) may set their own cookies to provide analytics and personalized advertising. You can disable cookies in your browser settings; doing so may affect how some features work.

Google Analytics

We use Google Analytics 4 to understand aggregate traffic patterns. Google Analytics may set cookies that assign a pseudonymous identifier to your browser and record the pages you view. You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.

Google AdSense and Third-Party Advertising

This Site displays advertisements served by Google AdSense and, through AdSense, by third-party advertising networks.

• Third-party vendors, including Google, use cookies (including the DART cookie) to serve ads based on your prior visits to this Site and other sites on the internet.
• 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.
• Alternatively, you can opt out of a third-party vendor’s use of cookies for personalized advertising by visiting www.aboutads.info.

For more information on how Google uses data, see How Google uses information from sites or apps that use our services.

Affiliate Links

The Site may contain affiliate links to third-party retailers (for example, Amazon Associates). We may earn a commission on qualifying purchases made through those links at no additional cost to you.

Children’s Privacy

The Site is intended for a general audience and is not directed at children under 13. We do not knowingly collect personal information from children.

Your Rights (EU / UK / California)

Depending on where you live, you may have rights to access, correct, or delete personal information held about you, and to opt out of the sale or sharing of personal information. To exercise any of these rights, contact us at the email address below.

Changes to This Policy

We may update this policy from time to time. The “Last updated” date at the top of this page will change when we do.

Contact

Questions about this privacy policy can be sent to nat@obsidianriver.com.