Calculator Privacy Policy

1. Overview & Commitment to User Privacy

This Privacy Policy governs the use of the Calculator mobile application (hereinafter referred to as "the App", "Calculator", or "Application"), identified by the Android package name com.rktextile.aicalculator, developed and published by RK Textile ("we," "us," or "our").

We respect your privacy rights and are firmly committed to protecting your personal information. Calculator is designed as an offline utility tool intended for performing basic mathematical calculations and scientific equations without compromising user privacy, asking for unnecessary system privileges, or serving unwanted advertisements.

By downloading, installing, or using Calculator, you agree to the terms described in this Privacy Policy.

2. Zero Advertising & No-Ads Policy (100% Ad-Free)

Calculator is built to provide an uninterrupted, distraction-free utility experience.

• No Advertisements: The App contains NO advertisements (banner ads, interstitial ads, rewarded video ads, or native ads).
• No Ad SDKs: We do not integrate any third-party advertising SDKs or monetization networks (such as Google AdMob, Unity Ads, Meta Audience Network, AppLovin, or ironSource).
• No Advertising Identifiers: The App does not read, log, or track your Android Advertising ID (GAID) or any device fingerprinting tokens.

3. Zero Device Permissions Required Policy

We strictly enforce a minimal data footprint. Calculator requires NO sensitive device permissions to operate on your Android smartphone or tablet:

• No Location Access: We do not request or track GPS, Wi-Fi, or network location data.
• No Storage / File Access: We do not access, read, or modify your device's photo gallery, media files, or internal/external storage directories.
• No Camera or Microphone Access: The App does not require or request access to your device camera or audio recording hardware.
• No Contacts or Phone State Access: The App does not read your contacts, call logs, phone state, SIM data, or IMEI numbers.
• No Internet Permission Required for Core Math Functions: Calculator executes all mathematical functions natively on your device without relying on remote servers.

4. Data Collection, Usage, and Local Processing

4.1 Simple & Scientific Calculator Operations

All basic arithmetic operations (addition, subtraction, multiplication, division, percentage) and advanced scientific calculations (trigonometry sin/cos/tan, logarithms, roots, exponentiation, factorials, radian/degree mode) are calculated exclusively on your device's local processor.

4.2 Local Calculation History & Settings

If you use the calculation history feature or adjust user preferences (such as decimal precision, angle unit, or theme preference):

• This data is stored locally on your device within the App's private sandbox memory.
• Calculation history logs and settings are NEVER transmitted over the internet or synced to external servers or cloud databases.
• You can clear your calculation history log at any time using the clear button inside the App.

4.3 Personal Identifiable Information (PII)

We do NOT collect, collect-by-proxy, sell, rent, or trade any personal identifiable information, including your name, email address, phone number, physical address, or account credentials.

5. Third-Party Services and Analytics

Calculator does NOT integrate third-party analytics tools (such as Firebase Analytics, Google Analytics, Mixpanel, or Flurry) to monitor user behavior or build user profiles. The App operates independently without sending user metrics to third parties.

Note on System Crash Reports: In rare instances of app instability, basic system-level crash logs (operating system build version, device hardware model, stack trace) may be automatically processed by the native Google Play Store operating environment to assist our developers in releasing stability bug fixes. These diagnostic reports contain no personal calculations or user identities.

6. Children’s Privacy (COPPA & GDPR-K Compliance)

Calculator is a general audience mathematical tool safe for users of all ages, including children under 13 years of age (or under 16 in the European Union).

• Because Calculator does not collect personal data, does not serve ads, and does not require account registration, it complies fully with the Children's Online Privacy Protection Act (COPPA), the General Data Protection Regulation (GDPR), and Google Play's Families Policy requirements.
• We do not knowingly solicit or collect data from children under any circumstances.

7. Data Security and Retention

Because no user data or calculation logs leave your local device, there are no cloud databases or central servers storing your information. This architectural design eliminates risks associated with remote server data breaches, unauthorized cloud leaks, or third-party data interception.

Data Retention & Deletion: You retain complete ownership and control over your locally stored calculation history. Uninstalling Calculator or selecting "Clear Data" under Android System Settings will immediately and permanently erase all locally cached history and preference data from your device.

8. International Users & Compliance

Calculator complies with international privacy frameworks including the General Data Protection Regulation (GDPR - EU/UK), California Consumer Privacy Act (CCPA/CPRA), and the Information Technology Act (India). Since no data processing occurs on external servers, user privacy rights are preserved across all geographic regions.

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect future software updates or regulatory standards. When changes are made, the "Effective Date" at the top of this page will be updated. We encourage users to review this page periodically to remain informed about our privacy practices.

10. Official Support and Contact Information

If you have any questions, feedback, or concerns regarding this Privacy Policy or the Calculator mobile application (com.rktextile.aicalculator), please feel free to reach out to our team: