Universal Privacy Policy

The fundamental architectural cornerstone of Calcia is our zero-knowledge client-side computation engine. When you enter financial balances, salary figures, interest rates, body measurements, blood alcohol estimates, concrete volumes, or calendar dates, those numerical values are evaluated strictly by your local device's JavaScript/TypeScript runtime.

Our web servers deliver static code, CSS, and mathematical blueprints. Once delivered, calculations run entirely offline in your browser. Your numerical inputs and computed outputs are never transmitted across the network to our servers, never logged in databases, and never observed by our operators.

In strict adherence to international privacy benchmarks (including the European Union General Data Protection Regulation (GDPR), California Consumer Privacy Act (CCPA/CPRA), and global data protection regimes):

• Zero Computational Ingestion: We do not log, capture, or store loan principals, net salaries, body mass, BAC percentages, ovulation dates, or pregnancy timelines.
• No User Accounts or Passwords: Calcia requires no account registration, authentication tokens, email submissions, or telephone verifications.
• Zero Cross-Site Fingerprinting: We do not deploy canvas fingerprinting, font enumeration, or audio-context tracking scripts.
• No Data Brokering: We do not sell, rent, monetize, or trade any user information with data syndicates or targeted ad networks.

When your browser requests a web page or mathematical asset from Calcia, our content delivery network (CDN) and edge hosting infrastructure automatically process standard HTTP transmission headers. This technical metadata may include:

Purpose & Retention: This data is processed strictly for infrastructure health, DDoS attack mitigation, bot detection, and routing optimization. Edge logs are automatically purged on short rolling schedules (typically within 7 to 30 days) and cannot be connected to your calculator activities.

Calcia does not use third-party behavioral tracking cookies, persistent commercial beacons, or cross-domain ad pixels. We utilize standard local browser storage (HTML5 LocalStorage) solely to preserve client-side user experience settings:

• Unit Preferences: Remembering whether you selected Metric (kg, cm, meters) or Imperial (lbs, inches, feet).
• Currency Symbols: Retaining your selected currency symbol (e.g., $, €, ₹, £).
• Color Theme: Preserving dark mode or light mode appearance preferences.

These preference keys remain strictly confined to your device's local browser sandbox and are never transmitted over the internet. You can clear LocalStorage at any time via your browser settings.

Calcia is an educational and reference platform designed strictly for users aged 16 and older (or the minimum legal age for digital services in your jurisdiction). We do not knowingly solicit, process, or collect personal data from minors under 16.

Because our calculation engines do not collect personal identifiers, no computational data of minors is retained. If a parent or guardian believes a minor has transmitted personal correspondence via email, please contact us immediately for prompt deletion.

Depending on your country or state of residence, you enjoy statutory legal rights regarding your digital privacy:

For any questions regarding our client-side zero-data architecture, data protection compliance, or to exercise statutory privacy rights, please contact the official developer and project desk: