Privacy Policy
Last Updated: August 14, 2026 • Effective Immediately
Your privacy is paramount. All mathematical operations, date computations, financial calculations, and history storage on Day to Day Calculator are executed 100% locally in your client web browser. We do not transmit, log, or sell your input data.
1. Information We Do Not Collect
When using our Day to Day Calculator, financial engines, or health calculators, we do not require account registration, email addresses, phone numbers, or payment methods. Values entered into input fields remain strictly in your browser session memory or optional browser localStorage.
2. Local Browser Storage
We use browser LocalStorage exclusively to store non-sensitive user preferences such as your dark/light theme toggle, recent calculation history (cleared anytime by clicking "Clear History"), and language preference. This data never leaves your device.
3. Third-Party Analytics & Cookies
We maintain minimal, privacy-respecting aggregated analytics to measure platform uptime, page views, and performance. No Personally Identifiable Information (PII) is captured.
4. Contacting Our Data Protection Team
If you have questions regarding this Privacy Policy, you may contact our compliance team directly at privacy@daytodaycalculator.com.