Play Sudoku Daily is designed to work without accounts or personal profiles. This page explains what little data is involved when you play.
Data stored on your device
Your puzzle progress, pencil notes, timer, streaks and settings are stored in your browser’s local storage. They never leave your device, and clearing your browser data removes them.
Analytics
We use Google Analytics 4 to understand aggregate usage — for example, which puzzles are played and completed. This involves cookies and collects technical information such as approximate location (city level), device type and pages visited. We do not collect names, emails or accounts, and we do not sell data. You can block analytics with any standard content blocker and the site will work normally.
Advertising
The site currently shows no ads. If that changes, this policy will be updated first.
Contact
Privacy questions: afsar@gameberrylabs.com.
Last updated: 19 July 2026