We take your privacy seriously. Here we explain what data we collect, how it is used, and what choices you have when you play on Sudokuen.no.
When using the service, technical data such as browser, operating system, device type and anonymized usage data are collected. If an account is created via Supabase, email address and authentication data are stored as part of the login solution.
The information is used to deliver core functionality, maintain stable operation, handle login, improve the service's performance and analyze usage patterns at an aggregated level.
Necessary cookies are used for authentication, storage of game progress and technical functions. Without these, the service cannot work as intended. Users can change cookie settings in their own browser.
Third-party providers are used where necessary for operation, storage or authentication. Providers only have access to data to the extent required to deliver the service, and the processing is regulated by data processing agreements.
Users can request access, correction and deletion of personal data in accordance with applicable regulations. Deletion of the account and associated data can be carried out via available functionality in the service when logged in.
Game data is stored locally in the browser with the option to synchronize to the account if the user is logged in. Deleting browser data may lead to loss of local progress.
The privacy policy may be updated when there are changes to the service or relevant routines. The last updated date reflects the current version.
Last updated: 16 November 2025