Policy Document

Privacy Policy

CalcREX ("we," "us," or "our") operates the website calcrex.com. This Privacy Policy explains how we collect, use, and protect information when you visit and use our website.

1.1 Information We Collect

CalcREX is designed with privacy in mind. Our calculators operate entirely in your browser - we do not collect, store, or transmit your calculation inputs or results to our servers.

We may collect the following limited information:

• Usage data: Pages visited, time spent, browser type, device type, and referring URL - collected via analytics services to improve user experience.
• Contact form submissions: If you contact us via our contact form, we collect the name, email address, and message content you voluntarily provide.
• Cookies: Small text files used for analytics and advertising purposes (see Cookie Policy below).

1.2 How We Use Your Information

• To understand how visitors use our website and improve our services.
• To respond to inquiries submitted through the contact form.
• To serve relevant advertisements through third-party ad networks.
• To detect and prevent misuse or technical issues.

1.3 Third-Party Services

We use the following third-party services that may collect data independently:

• Google Analytics: Collects anonymized usage statistics. See Google's Privacy Policy.
• Google AdSense: May use cookies to serve personalized advertisements. See Google's Ad Policies.
• Cloudflare: Provides DNS and security services. See Cloudflare's Privacy Policy.

1.4 Data Retention

Contact form submissions are retained only as long as necessary to respond to your inquiry. Analytics data is retained according to the default retention policies of the analytics platform in use.

1.5 Children's Privacy

CalcREX is an educational tool suitable for all ages. We do not knowingly collect personal information from children under the age of 13. If you believe a child has provided us with personal information, please contact us and we will promptly delete it.

1.6 Your Rights

Depending on your jurisdiction, you may have the right to access, correct, delete, or restrict processing of your personal data. To exercise any of these rights, please contact us using the details provided below.

Terms of Use

By accessing and using CalcREX (calcrex.com), you agree to be bound by these Terms of Use. If you do not agree, please discontinue use of the website.

2.1 License to Use

CalcREX grants you a limited, non-exclusive, non-transferable, revocable license to access and use the website and its calculators for personal, educational, and professional purposes. You may not:

• Reproduce, duplicate, or copy substantial portions of the website for redistribution.
• Use automated tools (bots, scrapers) to extract content or data from the website.
• Modify, reverse-engineer, or create derivative works from our source code.
• Use the website for any unlawful purpose or in a manner that could damage, disable, or impair the service.
• Frame or embed CalcREX pages on third-party websites without written permission.

2.2 Intellectual Property

All content on CalcREX - including text, graphics, SVG diagrams, worked examples, calculator logic, CSS designs, and JavaScript code - is the intellectual property of CalcREX and is protected by copyright law. The CalcREX name and logo are trademarks of CalcREX.

2.3 User Conduct

You agree not to:

• Attempt to gain unauthorized access to any portion of the website or its systems.
• Introduce malicious code, viruses, or harmful scripts.
• Interfere with the normal operation of the website for other users.
• Submit false or misleading information through any form on the website.

2.4 Availability

We strive to keep CalcREX available at all times, but we do not guarantee uninterrupted or error-free service. We reserve the right to modify, suspend, or discontinue any part of the website at any time without prior notice.

2.5 Modifications to Terms

We may update these Terms of Use from time to time. Changes will be effective upon posting to this page with an updated effective date. Continued use of the website after any changes constitutes acceptance of the revised terms.

2.6 Governing Law

These Terms of Use shall be governed by and construed in accordance with the laws of the Federal Republic of Nigeria. Any disputes arising from your use of CalcREX shall be subject to the exclusive jurisdiction of the courts of Nigeria.

Disclaimer

3.1 General Disclaimer

CalcREX provides online calculators and educational content for informational and educational purposes only. While we strive for accuracy, all calculations, results, worked examples, and educational materials are provided "as is" without warranty of any kind, either express or implied.

3.2 Not Professional Advice

The content and tools on CalcREX do not constitute professional advice in any field, including but not limited to:

• Engineering: Calculations should not be used as the sole basis for engineering design, structural analysis, or safety-critical decisions.
• Finance: Financial calculators are for estimation purposes. Consult a qualified financial advisor before making investment or financial decisions.
• Medical/Scientific: Scientific calculations are educational. Do not use them for clinical, diagnostic, or laboratory-critical purposes without independent verification.
• Legal: No content on this website constitutes legal advice.

3.3 Accuracy

We make reasonable efforts to ensure the accuracy of our calculators and educational content. However, errors may occur due to rounding, floating-point limitations, formula simplifications, or human error in content creation. Users should independently verify results for any critical application.

3.4 Limitation of Liability

To the maximum extent permitted by applicable law, CalcREX and its creators shall not be held liable for any direct, indirect, incidental, consequential, or special damages arising from your use of, or inability to use, any calculator, tool, or content on this website. This includes, without limitation, damages for loss of data, profit, business opportunity, or any other intangible losses.

3.5 External Links

CalcREX may contain links to third-party websites. We are not responsible for the content, privacy policies, or practices of any linked third-party sites. Inclusion of any link does not imply endorsement.

Cookie Policy

4.1 What Are Cookies?

Cookies are small text files stored on your device when you visit a website. They help the website remember your preferences and understand how you interact with it.

4.2 Cookies We Use

• Essential cookies: Required for basic website functionality (e.g., remembering your mobile menu state). These cannot be disabled.
• Analytics cookies: Used by Google Analytics to collect anonymized usage statistics such as page views, session duration, and traffic sources. These help us understand which calculators are most useful.
• Advertising cookies: Used by Google AdSense and its partners to serve relevant advertisements. These cookies may track your browsing activity across other websites to deliver targeted ads.

4.3 Managing Cookies

You can control cookies through your browser settings. Most browsers allow you to block or delete cookies. Please note that disabling cookies may affect your experience on CalcREX and other websites.

• Chrome: Settings → Privacy and Security → Cookies
• Firefox: Settings → Privacy & Security → Cookies and Site Data
• Safari: Preferences → Privacy → Manage Website Data
• Edge: Settings → Cookies and Site Permissions

4.4 Google AdSense & Personalization

Google uses cookies to serve ads based on your prior visits to CalcREX and other websites. You can opt out of personalized advertising by visiting Google Ad Settings or www.aboutads.info.

Accessibility Statement

CalcREX is committed to ensuring digital accessibility for people of all abilities. We continually work to improve the user experience for everyone and apply relevant accessibility standards.

5.1 Our Efforts

• Semantic HTML structure with proper heading hierarchy.
• Sufficient color contrast ratios for text and interactive elements.
• Keyboard navigable interfaces - all calculators and navigation elements can be operated without a mouse.
• Responsive design that adapts to all screen sizes, from mobile phones to large desktop monitors.
• Descriptive labels on form inputs and interactive controls.
• Print-friendly styles for educational content.

5.2 Known Limitations

While we strive for full accessibility, some areas may have limitations:

• SVG diagrams in educational topics may not have full alternative text descriptions. We are working to improve this.
• Some complex mathematical notation may not be fully accessible to screen readers.

5.3 Feedback

If you encounter any accessibility barriers on CalcREX, we want to hear from you. Please contact us so we can address the issue and improve the experience for all users.

Contact Us

If you have any questions about this Policy Document, your rights, or our practices, please reach out:

We aim to respond to all inquiries within 5 business days.