Privacy Policy

Last Updated: January 2025

Introduction

At Calc-Tech.com ("we," "our," or "us"), we respect your privacy and are committed to protecting your personal information. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website and use our calculators.

By using Calc-Tech.com, you agree to the collection and use of information in accordance with this policy.

Information We Collect

1. Personal Information

If you create an account on our website, we may collect:

  • Email address
  • Name (if provided)
  • Account credentials
  • Profile information (optional)

2. Calculator Input Data

When you use our calculators, you may input various types of data such as financial figures, health measurements, or other numerical values. We do not store your calculator inputs or results unless you are logged in and explicitly choose to save them.

3. Automatically Collected Information

When you visit our website, we automatically collect certain information, including:

  • IP address
  • Browser type and version
  • Operating system
  • Pages visited and time spent
  • Referring website
  • Device information

How We Use Your Information

We use the information we collect for the following purposes:

  • To provide our services: Operating and maintaining our calculators and website
  • To improve our website: Understanding how users interact with our calculators to enhance user experience
  • Account management: Managing your account and providing customer support
  • Communication: Sending important updates about our service (if you have an account)
  • Analytics: Analyzing usage patterns to improve functionality and add new features
  • Security: Detecting, preventing, and addressing technical issues and abuse

Important: Calculator Data

Your calculator inputs and results are NOT stored on our servers unless you:

  • Create an account and explicitly save calculations
  • Use features that require data persistence

For anonymous users, all calculations are performed client-side (in your browser) and are not transmitted to our servers. Your financial, health, and personal data entered into calculators remains private.

Cookies and Tracking Technologies

We use cookies and similar tracking technologies to enhance your experience:

Essential Cookies

Required for the website to function properly, including authentication and security features.

Analytics Cookies

Help us understand how visitors use our website, which pages are most popular, and how to improve user experience.

Preference Cookies

Remember your settings and preferences for a better experience on future visits.

You can control cookies through your browser settings. However, disabling certain cookies may limit website functionality.

Third-Party Services

We use the following third-party services:

Clerk (Authentication)

We use Clerk for user authentication and account management. Clerk processes your email and account information. Review Clerk's Privacy Policy.

Vercel (Hosting)

Our website is hosted on Vercel. Review Vercel's Privacy Policy.

Analytics Services

We may use analytics services to understand website usage. These services may collect anonymous usage data.

Data Security

We implement appropriate technical and organizational measures to protect your personal information:

  • Encryption of data in transit (HTTPS/SSL)
  • Secure authentication through Clerk
  • Regular security assessments
  • Access controls and authentication
  • Monitoring for suspicious activity

However, no method of transmission over the internet is 100% secure. While we strive to protect your information, we cannot guarantee absolute security.

Data Retention

We retain personal information only as long as necessary to provide our services and comply with legal obligations. If you delete your account, we will delete or anonymize your personal information, except where required by law to retain certain data.

Your Rights and Choices

You have the following rights regarding your personal information:

  • Access: Request access to your personal information
  • Correction: Request correction of inaccurate information
  • Deletion: Request deletion of your account and data
  • Opt-out: Opt out of marketing communications (if applicable)
  • Data portability: Request a copy of your data in a portable format
  • Withdraw consent: Withdraw consent for data processing where applicable

To exercise these rights, please manage your account settings or contact us through our About page.

Children's Privacy

Our website is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately, and we will take steps to delete that information.

International Users

Our website is operated from the United States. If you are accessing our website from outside the United States, please be aware that your information may be transferred to, stored, and processed in the United States. By using our website, you consent to this transfer.

California Privacy Rights (CCPA)

If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA):

  • Right to know what personal information is collected
  • Right to know if personal information is sold or disclosed
  • Right to opt-out of the sale of personal information
  • Right to deletion of personal information
  • Right to non-discrimination for exercising CCPA rights

Note: We do not sell your personal information.

European Users (GDPR)

If you are in the European Economic Area (EEA), you have rights under the General Data Protection Regulation (GDPR), including the right to access, rectify, erase, restrict processing, data portability, and to object to processing. You may also lodge a complaint with your local data protection authority.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last Updated" date. We encourage you to review this Privacy Policy periodically for any changes.

Do Not Track Signals

Some web browsers have a "Do Not Track" feature. At this time, we do not respond to Do Not Track signals. However, you can control cookies through your browser settings.

Questions About Privacy?

If you have questions or concerns about this Privacy Policy or our data practices, please visit our About Us page for more information.

Privacy Summary

  • Calculator inputs are NOT stored (unless you save them)
  • We do NOT sell your personal information
  • You can use calculators anonymously (no account required)
  • Secure authentication through Clerk
  • You control your data and can delete your account anytime