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Privacy Policy

Effective date: 2026-05-13

1. Who We Are

Sudoku Sage is operated by AC Utveckling, based in Sweden.

Contact email: claeseriksson@actuveckling.com

2. What Information We Collect

Information stored on your device

  • App settings such as timer, error feedback, note behavior, and highlighting choices.
  • Puzzle state needed to resume games and support offline play.
  • Local progress such as XP, badges, solved counts, best times, and completed lessons.

What we do not collect

  • No account information.
  • No precise location data.
  • No behavioral advertising data.
  • No sale of personal data.

3. Why Information Is Used

Local settings, progress, and saved games are used to provide app functionality and remember your preferences. The legal basis is legitimate interest for app functionality, safety, and reliability, and consent where required by applicable law.

4. Data Retention

Settings, progress, and saved games are stored locally on your device until you change them, clear browser or app data, or uninstall the app.

5. Third Parties

This build does not use third-party analytics, advertising, payment, or cloud processors. The app may cache Google Fonts locally after first load to support offline use.

6. Your Rights

You can request access, correction, deletion, restriction, or objection where applicable under GDPR. You may also complain to Integritetsskyddsmyndigheten (IMY). Contact: claeseriksson@actuveckling.com

7. Changes to This Policy

We may update this policy as the app evolves. Updated text will be made available in-app.