🔒 PRIVACY POLICY — DARKMATRIX CALC

1. Overview

Welcome to DarkMatrix Calc.

This Privacy Policy explains how our application handles information when you use the app.

DarkMatrix Calc is designed with a privacy-first approach. We do not collect, store, transmit, or share any personal information from users.

By using DarkMatrix Calc, you agree to the practices described in this Privacy Policy.

2. Information We Do Not Collect

DarkMatrix Calc does not collect any of the following:

• Personal information such as name, email address, or phone number

• Device identifiers

• GPS or location data

• Calculation history remotely

• Usage analytics

• Financial information

• Camera or microphone access

• Contacts or calendar information

• Biometric information

• IP address or network activity

• Any sensitive personal data

We do not sell, store remotely, or share user data.

3. Local Data Storage

DarkMatrix Calc stores certain preferences locally on your device only.

This may include:

• Selected theme

• Calculator settings

• Scientific mode preferences

• Angle mode (RAD / DEG)

• Local calculation history

• Memory functions

This data:

• Never leaves your device

• Is never uploaded to servers

• Is never shared with third parties

• Exists only to improve app functionality

You can remove all local data anytime through:

Android Settings → Apps → DarkMatrix Calc → Clear Data

or by using the in-app Clear History option.

4. Internet Permission

DarkMatrix Calc may declare the INTERNET permission for WebView compatibility and future technical functionality.

Currently:

• The app works fully offline

• No user data is transmitted

• No server communication occurs

• No network requests are made

The application can be used without an internet connection.

5. Permissions Used

DarkMatrix Calc may use the following Android permissions:

INTERNET

Used only for WebView compatibility.

VIBRATE

Used for optional haptic feedback.

ACCESS_NETWORK_STATE

Used only for WebView technical compatibility.

The app does not request access to:

• Camera

• Microphone

• Contacts

• SMS

• Phone logs

• Storage files

• GPS location

• Calendar

• Biometrics

or any other sensitive permissions.

6. Third-Party Services

DarkMatrix Calc does not use third-party tracking or analytics services.

The app does not include:

• Google AdMob

• Firebase Analytics

• Crashlytics

• Facebook SDK

• AppsFlyer

• Push notification services

• Tracking SDKs

• External analytics tools

The application contains:

• No advertisements

• No tracking systems

• No external API calls

• No data collection frameworks

7. Children's Privacy

DarkMatrix Calc is safe for all age groups, including children under 13.

Because no personal information is collected, the app aligns with:

• COPPA

• GDPR

• CCPA

• Google Play Families Policy

No personal information from children or adults is collected or shared.

8. Data Security

DarkMatrix Calc is designed with strong privacy and security practices.

Security measures include:

• No remote servers

• No external tracking SDKs

• Local-only functionality

• Minimal permission usage

• No remote databases

• Offline-first architecture

Our philosophy is simple:

“The safest data is the data that is never collected.”

9. User Rights

Since we do not collect personal data remotely, there is no server-side data to access or delete.

Users may:

• Clear local app data anytime

• Remove calculation history

• Disable sound or haptic feedback

• Disable animations

• Uninstall the app to remove all locally stored information

All locally stored data remains fully under user control.

10. Compliance

DarkMatrix Calc aims to comply with:

• Google Play Developer Policies

• GDPR

• CCPA

• COPPA

• Applicable privacy regulations

Our privacy model is based on minimal permissions and zero personal data collection.

11. Changes to This Policy

We may update this Privacy Policy in future app updates.

Any changes will be reflected by updating the “Last Updated” date at the top of this policy.

Continued use of the app after updates means you accept the revised Privacy Policy.

12. Disclaimer

DarkMatrix Calc is provided for general calculation purposes.

While we strive for accuracy, users should independently verify important calculations used in professional, educational, or financial situations.

13. Contact Us

If you have questions regarding this Privacy Policy, you may contact us:

Email: calchub96@gmail.com