Privacy Policy

Last updated: July 2026

This policy covers Grandmaster Sudoku and other apps published by Juliet Games.

No accounts

Grandmaster Sudoku doesn’t have accounts or logins. Single-player progress (difficulty, streak, best times, solved count) is stored locally on your device.

Multiplayer

Multiplayer races use a device-generated identifier and the display name you choose — not an email address or any other personal account. That identifier and display name, along with the outcome of finished races (room size, ranking, completion time), are stored so match history can be shown. In-progress game state during a race — how many cells, rows, columns, and boxes each player has completed — is kept only in memory for the duration of that race and is not persisted.

No puzzle content (the actual grid or your answers) is ever sent to our servers or to other players. Every device generates the puzzle locally from a shared seed.

What we don’t collect

We don’t collect contact lists, precise location, or browsing history, and we don’t sell data to third parties.

Analytics

This website uses Google Analytics to understand traffic. The app itself does not include third-party advertising SDKs.

We ask for your consent before any analytics cookie is set, as required for visitors in the European Economic Area and UK. Until you accept, Google Analytics runs in a privacy-safe mode that doesn’t store cookies or personal identifiers. You can change your choice at any time via the Cookie preferences link in the footer.

Your choices

You can play Grandmaster Sudoku entirely offline in single-player mode, in which case nothing leaves your device. Uninstalling the app removes all locally stored data. On the website, you can accept or reject analytics cookies via the Cookie preferences link in the footer.

Contact

Questions about this policy can be sent to [email protected].