Privacy Policy

1. Who we are

Calculator Services (“we”, “our”, “us”) operates the website calculatorservices.com (the “Service”), a free directory of online calculators, unit converters and utilities. This Privacy Policy explains what information we collect when you use the Service, how we use it, and the choices you have.

2. Information we collect

We collect only what is necessary to operate and improve the Service:

• Usage data — pages visited, calculators used, approximate session length, device type, browser language and an anonymised (/24-masked) IP address. We do not store full IP addresses.
• Local preferences — favorites, recently-used calculators and language preference, stored locally in your browser (LocalStorage). They never leave your device unless you clear them.
• Contact messages — if you email us via the contact form, we receive the details you choose to include.

We do not collect names, phone numbers, or payment information, and we do not sell personal data.

3. Cookies and similar technologies

We use a minimal set of first-party cookies / LocalStorage to remember your language preference and an anonymous visitor ID used for aggregated analytics. You can clear these at any time from your browser settings.

3.1 Third-party advertising cookies

We may partner with third-party advertising companies, including Google, to serve ads when you visit our Service. These third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website and other websites across the internet.

In particular, Google uses the DoubleClick cookie to serve ads to you based on your visits to our site and other sites on the Internet. You may opt out of the DoubleClick cookie at any time by visiting Google’s Ads Settings page. You may also opt out of third-party vendors’ use of cookies for personalised advertising by visiting www.aboutads.info/choices.

Third parties may also use cookies, web beacons and similar technologies to collect or receive information from this website and elsewhere on the internet and use that information to provide measurement services and target ads. Users in the European Economic Area, the United Kingdom and Switzerland will see a consent prompt for such technologies before they are used.

4. How we use the information

• Operate, maintain and secure the Service.
• Understand aggregated usage patterns (most-used calculators, popular categories, device mix) to improve the product.
• Detect abuse, fraud and brute-force attacks against the admin panel.
• Reply to messages you send us via the contact form.

5. Data retention

Raw analytics events (pageviews, calculator interactions) are automatically deleted 90 days after they are recorded via a database TTL index. Aggregated, non-identifying statistics may be retained longer.

6. Your choices

• You can clear all local data (favorites, recent, language, visitor ID) from your browser’s site-data controls at any time.
• You can opt out of Google’s personalised advertising at adssettings.google.com.
• You can email us to request access, correction or deletion of any personal data we hold about you (see Contact below).

7. Children’s privacy

The Service is not directed to children under 13, and we do not knowingly collect personal data from children. If you believe a child has provided us with personal data, contact us and we will delete it.

8. Changes to this policy

We may update this Privacy Policy from time to time. We will update the “Last updated” date above and, for material changes, post a prominent notice on the site.

9. Contact

Questions about this policy? Email hello@calculatorservices.com or visit our Contact page.