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Summary: We do not collect any personal information. This is a free calculation tool that processes your inputs locally and does not store any data.
1. Information We Do NOT Collect
This website is designed as a privacy-first tool. We do not collect, store, or process:
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Your calculation inputs (procurement amounts, flat numbers, meeting attendees, etc.)
- Calculation results
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Personal information (name, email, phone number, address)
- Cookies or tracking identifiers
- User accounts or login credentials
- Third-party analytics or advertising data
2. Minimal Technical Data (Anti-Abuse Only)
To protect the service from automated attacks and ensure fair usage, we temporarily store:
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IP Address: Stored in memory for 60 seconds only, used for rate limiting (20 requests per minute)
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Server Logs: Automatically generated by Google Cloud Run, retained for 30 days maximum for system maintenance and security monitoring
Important: IP addresses are considered personal data under Hong Kong PDPO and EU GDPR. We process them solely for security purposes and delete them as soon as possible.
3. How Your Inputs Are Processed
All calculations are performed in real-time and processed ephemerally:
- Your browser sends calculation requests to our server
- The server processes the calculation immediately
- Results are sent back to your browser
- No data is written to any database
- Server memory is cleared after processing
4. Third-Party Services
We use the following third-party infrastructure services:
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Google Cloud Run: Hosting infrastructure (subject to Google's privacy policy)
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Cloudflare: DNS and domain management (subject to Cloudflare's privacy policy)
We do NOT use:
- Google Analytics or any tracking scripts
- Advertising networks
- Social media tracking pixels
5. Data Sharing
We do not sell, rent, or share any user data with third parties. Since we don't collect personal data, there is nothing to share.
6. Your Rights
Under Hong Kong Personal Data (Privacy) Ordinance (PDPO), you have the right to:
- Access your personal data (Note: We don't store any)
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Request deletion (Note: Data is automatically deleted after 60 seconds)
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Object to processing (You can stop using the service at any time)
7. Security
We implement industry-standard security measures:
- HTTPS encryption for all communications
- CORS (Cross-Origin Resource Sharing) restrictions
- Request signing and validation
- Rate limiting to prevent abuse
8. Changes to This Policy
We may update this Privacy Policy occasionally. The 'Last Updated' date will reflect any changes. Continued use of the service constitutes acceptance of the updated policy.
9. Contact Information
If you have questions about this Privacy Policy, please contact us at:
Email: hkbmo2024@gmail.com