Privacy Policy

Last updated: April 28, 2026

This Privacy Policy explains how calcnote.io collects, uses, stores, and discloses information when you use the website.

1. Who We Are

calcnote.io is a browser-based calculator notebook that lets you write formulas and notes directly in the page. At the moment, the service is designed to work primarily on the client side inside your browser.

2. Information Stored in Your Browser

calcnote.io stores some information locally in your browser using local storage so the app can remember your preferences and content between visits.

• Your editor content
• Your selected theme
• Your selected language
• Your hint visibility preference

This information is stored on your device and is not intended to be transmitted to calcnote.io servers by the application itself.

3. Information Collected Automatically

Like most websites, calcnote.io may rely on hosting, CDN, DNS, and security providers that can process technical data such as IP address, browser type, device information, referring URL, and basic request logs in order to serve and protect the website.

4. Cookies and Similar Technologies

calcnote.io may use cookies or similar technologies directly or through third-party services for functionality, security, analytics, consent management, and advertising.

5. Advertising

calcnote.io may display advertising, including ads served by Google AdSense or other advertising partners. If advertising is enabled, those partners may use cookies, local storage, or similar technologies to serve and measure ads, including personalized or contextual ads where permitted by law and platform settings.

Google and its partners may use data based on prior visits to this site or other websites to provide advertising. For more information about how Google uses information from sites or apps that use its services, visit policies.google.com/technologies/partner-sites.

6. Consent and Regional Privacy Requirements

If required by applicable law, calcnote.io may display a consent or privacy message to users in certain jurisdictions, including the EEA, the UK, Switzerland, and certain U.S. states. Your choices may affect how ads and related technologies are used.

7. Third-Party Services

calcnote.io may use third-party services such as hosting providers, analytics providers, consent tools, and advertising providers. These third parties process data according to their own privacy policies and legal obligations.

8. Data Retention

Locally stored app data remains in your browser until you clear it, remove it manually, or your browser removes it. Third-party providers may retain technical or advertising-related data according to their own retention policies.

9. Your Choices

• You can clear local storage through your browser settings.
• You can control cookies through your browser settings.
• You can manage consent choices through any privacy or consent interface shown on the website, where available.

10. Children's Privacy

calcnote.io is not intended for children under the age required by applicable law for consent to data processing in their jurisdiction. If you believe personal data relating to a child has been provided through the site, contact the site operator so the issue can be reviewed.

11. Changes to This Policy

This Privacy Policy may be updated from time to time. The updated version will be posted on this page with a revised “Last updated” date.

12. Contact

For privacy-related questions about calcnote.io, use the contact details or support channel provided by the site operator. If no dedicated contact channel is listed on the website yet, you can treat the domain owner of calcnote.io as the responsible party for this website.