DD Calculator is designed with privacy in mind. No Personal Information is collected including names, emails, phone numbers, addresses, or payment information. No Calculation Data is transmitted - all calculations are performed locally. No Usage Tracking occurs, meaning we do not track what calculations you perform.

Calculation History is stored only on your device (last 100 calculations). Memory Values (M+, M-, MR, MC functions) are stored locally. Theme Preferences (Dark/Light mode) are stored locally. Angle Mode (Degree/Radian setting) is stored locally. All this data remains on your device and is never transmitted to our servers.

We do not share any data with third parties. No advertising networks or analytics services are integrated. No social media tracking is present. We do not sell, rent, or trade any information.

DD Calculator requires minimal permissions. VIBRATE permission is for haptic feedback on button presses (optional feature). INTERNET permission is not required as the app works completely offline.

Since we don't collect personal data, there's minimal security risk to you. Local data is protected by your device's security features. We recommend keeping your device's operating system updated.

DD Calculator does not collect personal information from anyone, including children under 13. The Application is safe for users of all ages.