Privacy Policy

Last Updated: January 30, 2026

1. Information We Collect

1.1 Information You Provide

We collect information that you voluntarily provide when using our calculators and services:

• Calculator Inputs: Numbers, values, and parameters you enter into our calculators
• Account Information: If you create an account, we collect your email address, username, and password
• Communication Data: Information you provide when contacting us, including feedback and support requests
• Profile Information: Optional information you choose to provide, such as name and preferences

1.2 Automatically Collected Information

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

• Usage Data: Pages visited, calculators used, time spent on site, click patterns
• Device Information: Browser type, operating system, device type, screen resolution
• Log Data: IP address, access times, referring URLs
• Cookies and Similar Technologies: See Section 3 for details

1.3 Calculation History

We store your calculation history in your browser's local storage and, if you're logged in, on our servers. This includes:

• Calculator inputs and results
• Timestamps of calculations
• Unique calculation identifiers (hashes)

2. How We Use Your Information

We use the collected information for the following purposes:

2.1 Service Provision

• Provide, operate, and maintain our calculator services
• Process and store your calculations
• Enable calculation sharing and history features
• Personalize your experience based on your usage patterns

2.2 Communication

• Send service-related notifications and updates
• Respond to your inquiries and support requests
• Send newsletters and promotional content (with your consent)

2.3 Analytics and Improvements

• Analyze usage patterns and trends
• Improve and optimize our calculators and website
• Develop new features and services
• Monitor and prevent technical issues

2.4 Legal and Security

• Comply with legal obligations and enforce our Terms of Service
• Protect against fraud, abuse, and security threats
• Resolve disputes and enforce our agreements

3. Cookies and Tracking Technologies

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

3.1 Types of Cookies We Use

3.2 Managing Cookies

You can control and manage cookies through your browser settings. However, disabling cookies may limit your ability to use certain features of our website.

4. Information Sharing and Disclosure

We do not sell your personal information. We may share your information in the following circumstances:

4.1 Service Providers

We may share information with third-party service providers who perform services on our behalf, including:

• Hosting and infrastructure providers
• Analytics and monitoring services
• Email and communication services
• Security and fraud prevention services

4.2 Legal Requirements

We may disclose your information if required by law or in response to valid requests by public authorities, including:

• To comply with legal obligations or court orders
• To protect our rights, property, or safety
• To prevent fraud or security threats
• In connection with legal proceedings

4.3 Business Transfers

In the event of a merger, acquisition, or sale of assets, your information may be transferred to the acquiring entity.

4.4 Public Calculations

If you choose to share a calculation via a public link, the calculation data associated with that link will be accessible to anyone with the link.

5. Data Security

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

• Encryption: Data transmission is encrypted using SSL/TLS protocols
• Access Controls: Limited access to personal information on a need-to-know basis
• Regular Security Audits: Periodic review and testing of security measures
• Secure Storage: Information stored on secure servers with restricted access

6. Data Retention

We retain your information for as long as necessary to fulfill the purposes outlined in this Privacy Policy:

• Account Data: Retained until you delete your account
• Calculation History: Stored for up to 1 year or until you clear your history
• Log Data: Typically retained for 90 days
• Analytics Data: Aggregated and anonymized data may be retained indefinitely

7. Your Privacy Rights

Depending on your location, you may have the following rights regarding your personal information:

7.1 General Rights

• Access: Request a copy of your personal information
• Correction: Request correction of inaccurate information
• Deletion: Request deletion of your personal information
• Data Portability: Request a copy of your data in a portable format
• Opt-Out: Opt-out of marketing communications

7.2 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, used, shared, or sold
• Right to delete personal information held by businesses
• Right to opt-out of the sale of personal information (we do not sell personal information)
• Right to non-discrimination for exercising CCPA rights

To exercise these rights, please contact us at support@calcugo.com or use our contact form.

7.3 Nevada Privacy Rights

Nevada residents have the right to opt-out of the sale of personal information. We do not sell personal information as defined under Nevada law.

8. Children's Privacy (COPPA Compliance)

Our service is not directed to children under the age of 13, and we do not knowingly collect personal information from children under 13.

If we learn that we have collected personal information from a child under 13, we will take steps to delete such information as quickly as possible.

If you are a parent or guardian and believe that your child has provided us with personal information, please contact us at support@calcugo.com.

9. International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence. These countries may have data protection laws that are different from your country's laws.

When we transfer information internationally, we take appropriate safeguards to ensure your information receives an adequate level of protection.

10. Third-Party Links

Our website may contain links to third-party websites, services, or advertisements. We are not responsible for the privacy practices or content of these third parties.

We encourage you to read the privacy policies of any third-party sites you visit.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. When we make changes, we will:

• Update the "Last Updated" date at the top of this policy
• Notify you via email or through a prominent notice on our website
• In case of material changes, obtain your consent where required by law

We encourage you to review this Privacy Policy periodically to stay informed about how we protect your information.

12. Do Not Track Signals

Some web browsers have a "Do Not Track" (DNT) feature. Currently, there is no industry standard for how to respond to DNT signals. We do not currently respond to DNT signals or similar mechanisms.

13. Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or our privacy practices, please contact us:

14. Consent

By using our website and services, you acknowledge that you have read and understood this Privacy Policy and agree to the collection, use, and disclosure of your information as described herein.