Privacy policy

This privacy policy explains how qCalc collects, uses, and protects information when you use the qCalc web application and services available at qcalc.org (the “Service”).

If you choose to use our Service, you agree to the collection and use of information in accordance with this policy. The personal Information we collect is used for providing and improving the Service. We will not use or share your information with anyone except as described in this Privacy Policy.

1. Information we collect

We collect information that is necessary to provide and improve the Service. This may include information you provide directly, information generated when you use the Service, and technical information sent by your browser.

2. Account information

If you create a qCalc account, we may collect information such as your username, email address, and other information required to manage your account and provide account-related features.

3. User-created calculators

qCalc allows users to create calculators using Python and save them to their accounts. This may include calculator source code, configuration, descriptions, and other information associated with a calculator.

Depending on the features and settings available to you, calculators may be kept private or made available to other users. If you make a calculator public, information associated with that calculator may be accessible to other users of the Service.

You should not include passwords, personal information, confidential information, or other sensitive information in calculator source code or calculator content unless you understand the implications of doing so.

4. Calculator inputs and results

Information entered into calculators may be processed by the Service to perform the requested calculations. Calculator inputs and results may be processed and, where necessary, temporarily stored to provide the requested functionality.

You should avoid entering sensitive personal or confidential information into calculators unless the calculator is specifically intended for such information and you understand how it is handled.

5. Log data

Whenever you visit the Service, our servers may receive information automatically sent by your browser. This may include your IP address, browser type and version, pages visited, the date and time of your visit, time spent on pages, and other technical information.

Log data may be used for security, troubleshooting, monitoring, and improving the Service.

6. Cookies

qCalc may use cookies and similar technologies to provide essential functionality, maintain sessions, remember preferences, and improve the Service.

Some cookies may be necessary for the Service to function correctly. You can control cookies through your browser settings, although disabling certain cookies may affect the functionality of the Service.

7. Third-party services

qCalc may use third-party services where necessary to operate, secure, monitor, or improve the Service. Such services may process limited information on our behalf. We do not sell your personal information.

The Service may also contain links to third-party websites or services. Those sites are not operated by qCalc, and their privacy practices are governed by their own privacy policies.

8. Web forms

Information submitted through forms on qcalc.org may be used to provide the requested functionality, perform calculations, respond to requests, maintain accounts, or otherwise operate the Service.

9. How we use information

Information collected by qCalc may be used to:

provide and operate the Service;
create and manage user accounts;
store and provide access to user-created calculators;
perform calculations and provide requested results;
maintain the security and reliability of the Service;
diagnose problems and improve the Service; and
respond to questions, feedback, and support requests.

10. Security

We take reasonable measures to protect information handled by the Service. However, no method of transmission over the Internet or method of electronic storage is completely secure, and we cannot guarantee absolute security.

11. Data retention

We retain information for as long as reasonably necessary to provide the Service, maintain accounts, comply with legal obligations, resolve disputes, and protect the Service. The retention period may vary depending on the type of information and the purpose for which it is used.

12. Children's privacy

The 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 become aware that we have collected personal information from a child under 13, we will take reasonable steps to delete it.

13. Self-hosted qCalc

This Privacy Policy applies to the qCalc service operated at qcalc.org. qCalc can also be self-hosted by individuals or organizations.

A self-hosted installation is operated by the person or organization that deploys it and may have different data-handling practices, privacy policies, and retention policies. This Privacy Policy does not govern independently operated self-hosted installations.

14. Changes to this privacy policy

We may update this Privacy Policy from time to time. Changes will be posted on this page and will become effective when posted unless otherwise stated.

15. Contact us

If you have any questions or suggestions about our Privacy Policy, please contact us.