Privacy Policy

1. Introduction

CalcMulti (www.calcmulti.com) respects your privacy and is committed to protecting any information collected while you use our website. This Privacy Policy explains what data we collect, how we use it, and your rights regarding that data.

By accessing or using CalcMulti, you agree to the practices described in this Privacy Policy. If you do not agree with this policy, please discontinue use of our website. This policy is effective as of February 2, 2026.

2. Information We Collect

CalcMulti is designed to provide free online calculators and tools without requiring any personal accounts or registration. The information we collect is limited to the following:

• Usage Data via Google Analytics 4: We use Google Analytics 4 (GA4) to collect anonymized usage data, including page views, session duration, device type, operating system, browser information, screen resolution, geographic region (country/city level), and referral source. This data is aggregated and does not personally identify you.
• No Personal Information Collected: CalcMulti does not require user accounts, registration, login, or any form of personal information submission. We do not collect your name, email address, phone number, or any other personally identifiable information (PII).
• Client-Side Processing Only: All calculator inputs and computations are processed entirely within your browser (client-side). Your calculation data is never transmitted to or stored on our servers. What you type into our calculators stays on your device.

3. Cookies and Tracking Technologies

CalcMulti and its third-party partners use cookies and similar tracking technologies to enhance your experience and to analyze website traffic. The cookies used on our site include:

Managing Cookies: You can control and manage cookies through your browser settings. Most browsers allow you to block or delete cookies. However, please note that disabling cookies may affect the functionality of certain features on our website. Refer to your browser's help documentation for instructions on how to manage cookie preferences.

4. Google AdSense

CalcMulti uses Google AdSense to display advertisements. Google AdSense is a third-party advertising service that uses cookies and web beacons to serve ads that may be relevant to you.

• Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website and other websites on the internet.
• Google uses the DoubleClick advertising cookie to enable it and its partners to serve ads to you based on your browsing patterns. This cookie does not collect personally identifiable information.
• You may opt out of personalized advertising by visiting www.aboutads.info or the Google Ads Settings page.
• For more information about how Google manages data in its ad products, please review Google's Advertising Policies.

5. How We Use Information

The limited information we collect is used solely for the following purposes:

• Improve Website Performance: Analytics data helps us understand how our website is performing, identify technical issues, and optimize page load times and overall user experience.
• Understand User Behavior: We analyze aggregated usage patterns to determine which calculators and tools are most popular, which features need improvement, and how users navigate our site so we can build better tools.
• Display Relevant Advertisements: Information collected through advertising cookies is used to display ads that may be more relevant and useful to you, which helps us sustain the website and keep all tools free of charge.

6. Data Sharing

CalcMulti values your privacy and is committed to responsible data practices:

• We do not sell your personal data. Under no circumstances do we sell, rent, or trade any user data to third parties.
• Limited Third-Party Sharing: Anonymized usage data is shared only with Google Analytics (for website performance analysis) and Google AdSense (for ad delivery). These services operate under their own privacy policies.
• No Other Third-Party Sharing: Beyond the services listed above, we do not share any data with other third-party companies, organizations, or individuals.

7. Data Retention

Analytics data collected through Google Analytics is retained in accordance with Google's default data retention policies. By default, Google Analytics 4 retains user-level data for 14 months, after which it is automatically deleted. We do not independently store any user data on our own servers. For more details on Google's data retention practices, please visit Google's Data Retention documentation.

8. Your Rights

Depending on your location, you may have certain rights regarding the data associated with your use of CalcMulti:

• Access, Correct, and Delete: You have the right to request access to, correction of, or deletion of any personal data we may hold. Since CalcMulti does not collect personally identifiable information, this primarily applies to data held by third-party services (Google Analytics and Google AdSense).
• Opt Out of Personalized Advertising: You can opt out of personalized ads by visiting Google Ads Settings or Digital Advertising Alliance's opt-out page.
• Disable Cookies: You can disable cookies at any time through your browser settings. Instructions for managing cookies are available in your browser's help documentation.
• GDPR Rights (European Economic Area): If you are located in the European Economic Area (EEA), you have rights under the General Data Protection Regulation (GDPR), including the right to access, rectification, erasure, restriction of processing, data portability, and the right to object to processing. To exercise these rights, please contact us using the details provided below.
• CCPA Rights (California): If you are a California resident, you have rights under the California Consumer Privacy Act (CCPA), including the right to know what personal information is collected, the right to request deletion, and the right to opt out of the sale of personal information. CalcMulti does not sell personal information.

9. Children's Privacy

CalcMulti is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have inadvertently collected personal information from a child under 13, we will take steps to delete that information as quickly as possible. If you believe that a child under 13 has provided us with personal information, please contact us at contact@calcmulti.com so we can take appropriate action.

10. Changes to This Policy

We may update this Privacy Policy from time to time to reflect changes in our practices, technologies, legal requirements, or other factors. When we make changes, we will update the "Last Updated" date at the top of this page. We encourage you to review this Privacy Policy periodically to stay informed about how we are protecting your information. Your continued use of CalcMulti after any changes to this policy constitutes your acceptance of the updated terms.

11. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please do not hesitate to contact us: