Privacy Policy
Effective Date: October 6, 2026 · Last Updated: October 6, 2026
Summary of Key Privacy Principles
- ✓Zero Data Collection on Inputs: When you enter your salary, mortgage figures, body weight, or dates, those numbers never leave your web browser. All math runs locally on your computer or mobile device.
- ✓No User Accounts Required: You never need to sign up, provide an email address, or create a password to access all calculator features.
- ✓No Sale of Personal Data: We do not sell, rent, monetize, or trade user personal data with third-party data brokers.
1. Information We Do Not Collect
Unlike cloud-hosted services that send form inputs to backend databases, CalcSignal utilizes a pure client-side deterministic execution model (React Islands). We do not collect, inspect, store, or log:
- Financial information (loan balances, interest rates, annual wages, tax inputs).
- Personal physical attributes (body weight, height, age, activity level).
- Academic records (course grades, credit hours, cumulative GPA).
- Date calculations (birth dates, anniversary milestones).
2. Technical & Server Logs
When you request a static web page on CalcSignal.com, our content delivery network (Cloudflare Pages) automatically logs standard, non-personally-identifiable server access data. This data includes:
- Internet Protocol (IP) address (used transiently for security mitigation and regional routing).
- Browser type, device architecture, and operating system.
- Referring URLs, requested resource paths, and HTTP response codes.
- Time and date timestamps of server requests.
This server log data is utilized strictly for diagnosing network errors, defending against distributed denial-of-service (DDoS) attacks, and maintaining platform uptime.
3. Cookies and Local Storage
CalcSignal does not employ persistent tracking cookies for profiling or cross-site behavioral tracking. Transient browser storage (such as HTML5 LocalStorage or SessionStorage) may be utilized strictly on your device to remember user preferences (such as selected degree/radian mode on the scientific calculator or chosen currency unit) across page reloads. This information never leaves your device.
4. Third-Party Infrastructure
CalcSignal is statically hosted on Cloudflare Pages and distributed globally across edge data centers to provide maximum speed, low latency, and SSL encryption. You can review Cloudflare’s privacy policies at cloudflare.com/privacypolicy.
5. GDPR & CCPA/CPRA Compliance
Because CalcSignal does not store personal identifiable information (PII) or build user tracking profiles, our platform adheres to privacy-by-design standards in accordance with the European Union General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA/CPRA).
6. Children’s Privacy
Our calculators are intended for general public educational and computational utility. We do not knowingly solicit or collect any personal information from children under the age of 13.
7. Policy Modifications & Contact
We may update this Privacy Policy from time to time to reflect operational or regulatory updates. Any changes will be published directly on this page with an updated effective date.
If you have questions about this policy or our data practices, please email our privacy team at [email protected].