Privacy Policy

Data Collection

Sudoji does not collect any personal information. We don't know who you are, where you are, or anything about you or your children. We have no servers storing user data.

Local Storage

The app stores the following data locally on your device only:

• Game progress and current puzzle state
• Your preferences (sound, hints, difficulty)
• Puzzle completion statistics and sticker collection

No Accounts Required

Sudoji doesn't require registration, login, or any account creation. There's no email collection, no passwords, and no personal profiles.

No Advertising

Sudoji contains no advertisements. We don't use ad networks, tracking pixels, or any advertising-related services.

Third-Party Services

The Sudoji app does not integrate with any third-party analytics, tracking, or data collection services. The app functions entirely offline after download.

Website Analytics

Our website (sudoji.fun) uses Pirsch Analytics, a privacy-friendly analytics service. Pirsch does not use cookies, does not track individual users, and does not collect personal data. It only provides anonymous, aggregated statistics like page views and referrer information. Pirsch is GDPR-compliant and hosted in Germany. Learn more at pirsch.io.

Children's Privacy

Sudoji is designed for children and complies with children's privacy requirements (COPPA). Since we don't collect any data, there's nothing to protect beyond what's already on your device.

Data Retention

Local data remains on your device until you uninstall the app or clear app data. Since we have no servers, there's no remote data to retain or delete.

How to Delete Your Data

To delete all Sudoji data from your device:

• Uninstall the app - this removes all data completely
• Or clear app data in your device settings (Settings → Apps → Sudoji → Clear Data)

Data Security

Your data is protected by your device's built-in security. Since data never leaves your device and is never transmitted over the internet, there's no risk of data breaches, interception, or unauthorized access from external parties.

Changes to This Policy

If we ever change this policy, we'll update this page with the new date. But our commitment to zero data collection won't change.