Privacy Policy

Last updated: October 19, 2026 · Effective Date: October 19, 2026

1. Dojo Commitment to Privacy

Killer Sudoku Academy is built with a privacy-first mindset. We believe logic training should be meditative and distraction-free. We do not sell your personal data, track your activity across third-party websites, or serve tracking ads.

2. Data Stored Locally (Hive Offline DB)

Your puzzle solves, best times, mistake limits, dark mode preferences, language selection (English / Urdu), and martial arts belt progression (White through Black Belt) are saved locally on your device using Hive CE offline key-value storage.

3. Telemetry & Crash Diagnostics

To keep the app fast and bug-free across thousands of Android and iOS device models, we utilize Google Firebase Crashlytics. When an unexpected crash occurs, anonymous stack traces and hardware specifications (e.g., OS version, device architecture) are collected strictly to diagnose and fix software defects.

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

Killer Sudoku Academy is intended for sharp minds of all ages, including young students learning mathematics and logic. We do not knowingly collect personally identifiable information from children under the age of 13.

5. Contact Dojo Support

If you have any questions or data deletion requests, contact our engineering team directly at:
support@killer-sudoku-academy.web.app