Effective date: October 8, 2025
The Stair Calculator (“we”, “us”, “our”) operates thestaircalculator.com (the “Site”) and the web-based stair calculator tool (collectively, the “Service”). This Privacy Policy explains what information we collect, how we use it, and your choices. By using the Service, you agree to the practices described here.
Information We Collect
Automatically Collected Data
When you visit the Site, we may automatically receive:
(i) device and browser information (e.g., IP address, user agent, operating system, screen size),
(ii) usage data (pages visited, clicks, calculator interactions, timestamps), and
(iii) aggregated analytics. This data helps us operate and improve the Service.
Voluntarily Provided Data
If you contact us (e.g., via a form or email), we may receive your name, email, and message content. We do not require registration to use the calculator and do not intentionally collect sensitive personal data.
How We Use Information
We use information to operate and improve the Service, personalize defaults (e.g., units), analyze performance and usage trends, respond to messages, and—only if you opt in—send updates about features or content.
Cookies & Local Storage
Analytics
We may use privacy-friendly analytics to understand aggregate usage (e.g., pages viewed, popular inputs). Analytics data is typically de-identified and aggregated; we do not sell personal data.
Data Sharing & Disclosure
We do not sell your personal information. We may share aggregated, non-identifiable insights with service providers (e.g., analytics) who are bound by contractual confidentiality obligations. We may disclose information if required by law or to protect our rights, users, or the public.
Security
We use reasonable technical and organizational measures (e.g., HTTPS/TLS, access controls) to protect information. No method of transmission or storage is fully secure; use discretion when sharing data online.
Data Retention
We retain contact messages for as long as needed to address your request, then delete them or archive them securely. Aggregated analytics may be kept for 12–24 months. Preference data stored in your browser remains until you clear it.
Your Rights & Choices
GDPR/UK & Similar Frameworks
Depending on your location, you may have rights to access, correct, delete, or restrict processing of your personal data, and to object to certain processing or request portability. You can exercise these rights by contacting us at staircalculator@outlook.com
California (CCPA/CPRA)
California residents can request access to and deletion of personal information, and may opt out of “sharing” for cross-context behavioral advertising. We do not sell personal information. To make a request, contact staircalculator@outlook.com
Children’s Privacy
The Service is not directed to children under 13 (or under 16 in some regions). We do not knowingly collect personal information from children. If you believe a child provided personal data, please contact us and we will delete it.
International Data Transfers
We may process information in countries other than your own. Where required, we implement appropriate safeguards (e.g., contractual clauses) to protect your information in accordance with applicable laws.
Third-Party Links
Our Site may include links to third-party websites. We are not responsible for their content or privacy practices. Review the privacy policies of any third-party sites you visit.
Changes to This Privacy Policy
We may update this Privacy Policy periodically. We will post the updated version here and revise the effective date above. Your continued use of the Service after changes means you accept the updated Policy.
Contact Us
Questions or requests? Email us at staircalculator@outlook.com. If you prefer, you can also reach us via the contact form on our Site.