Cookie Policy

1. What Are Cookies and Web Storage?

Cookies are small text files placed on your computer or mobile device when you browse websites. They are widely used to make websites function properly, enhance user experience, and provide aggregated reporting information to site owners.

In addition to traditional HTTP cookies, modern web applications utilize HTML5 Local Storage, which allows data to be stored securely within your local browser without being transmitted across the network on every page request.

2. How CalcSolver Uses Local Storage (100% Client-Side)

Unlike most online utilities, CalcSolver operates on a privacy-first client-side computation model. We use your browser’s localStorage strictly for functional ergonomics:

• Theme Preference: Saves your preferred calculator aesthetic (e.g., Dark Slate, Classic, Minimalist, Pastel) so your workspace remains consistent between visits.
• Ruled Scratchpad Notes: Auto-saves equations and rough notes you jot down on the interactive notepad so accidental page refreshes do not erase your work.
• Recent Calculation History: Stores recent arithmetic calculations locally for quick 1-click recall into the keypad.

3. Google AdSense & Advertising Cookies

To ensure that all 37+ calculators, step-by-step solvers, and educational guides remain 100% free forever without subscriptions or paywalls, CalcSolver displays advertisements through Google AdSense (Publisher ID: ca-pub-9256951685932619).

Google and its certified advertising partners use cookies (including the DoubleClick cookie) to serve ads based on a user’s prior visits to this website and other sites across the internet:

• Google’s use of advertising cookies enables it and its partners to serve ads based on your visit to CalcSolver and/or other sites on the Internet.
• Users 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 or Your Online Choices (Europe).

4. Google Analytics (GA4) Cookies

We use Google Analytics 4 (Measurement ID: G-6WDQMJGQ5Z) to understand aggregate website performance, including which calculator tools are most popular, average page loading speeds, device display types, and general geographical trends.

Google Analytics collects information anonymously. It reports website trends without identifying individual visitors. GA4 automatically anonymizes IP addresses by default. You can prevent Google Analytics from recognizing your return visits by disabling cookies on your browser or by installing the Google Analytics Opt-out Browser Add-on.

5. How to Control and Delete Cookies in Your Browser

You have the full right to decide whether to accept or reject cookies. Most web browsers allow you to modify cookie preferences through browser settings. Here is how to manage cookies on popular browsers:

• Google Chrome: Settings → Privacy and security → Cookies and other site data.
• Mozilla Firefox: Settings → Privacy & Security → Cookies and Site Data.
• Apple Safari: Preferences → Privacy → Manage Website Data.
• Microsoft Edge: Settings → Cookies and site permissions → Manage and delete cookies and site data.

Please note that disabling cookies may affect some non-essential features, but our core arithmetic and algebra calculators will always remain functional.

6. Updates to This Policy & Contact Information

We may update this Cookie Policy periodically to reflect technological changes, new calculator features, or regulatory guidance. Any modifications will take effect immediately upon posting with an updated revision date.

If you have any questions regarding our use of cookies or privacy practices, please contact us at [email protected] or visit our Contact Page.