GridNook Sudoku Privacy Policy for Google Play
Last updated: November 9, 2026
This policy applies to the Android version of GridNook Sudoku distributed through Google Play. It is operated by Hangzhou Lingpeng Technology Co., Ltd. For privacy questions, contact:
Data in the app
GridNook Sudoku is an offline puzzle game. The current version does not require an account or include advertising or analytics services. The app does not collect or share personal data with us.
Your current puzzle, pencil notes, settings, and completion records are stored locally on your device to restore your game, apply your preferences, and display results. They generally remain until you clear the app's data or uninstall the app.
Deletion and contact
You can delete local game data by clearing GridNook Sudoku's app data in Android system settings or uninstalling the app.
If you contact us by email, we use the contact information and feedback you provide to handle and reply to your request. Please avoid sending passwords or sensitive information that is not needed to describe the issue.
For questions about this policy or personal information, contact the email address above. We will update this page when the policy changes.