Privacy policy

This privacy policy is applicable to:

  • The website and all its subdomains
  • The Android App “Sudoku” published by Mathias Lengler to the Google Play Store

User data

We do not access, collect, store, use or share any personal or sensitive user data.


If you email the developer for support or other feedback, the emails with email addresses will be retained for quality assurance purposes. The email addresses will be used only to reply to the concerns or suggestions raised and will never be used for any marketing purpose.

Disclosure of Personal Information

We will not disclose your information to any third party except if you expressly consent or where required by law.

Contacting Us

If you have any questions regarding this privacy policy, you can contact the developer:

Mathias Lengler